Adjectives and adverbs are words that describe or modify other words.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-8/session-2/activity-3
Simple, continuous, perfect and perfect continuous.
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-30/session-1
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-11/session-1
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-13/session-1
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-17/session-1
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-18/session-1
Zero, first, second, third and mixed.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-24/session-2/activity-3
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-28/session-1
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-28/session-4
Defining relative clauses...
We use the definite article with abstract uncountable nouns when the noun is used to refer to specific example of that noun.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-16/session-2/activity-3
The definite article is used when both the speaker and listener know what is being talked about or to identify a particular thing.
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-11/session-1
The first conditional is used to talk about possible future situations and their possible results.
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-23/session-2/activity-3
We use the future continuous, will + be + present participle,
We use be + to-infinitive to talk about future events which involve instruction or necessity.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-22/session-2/activity-3
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-10/session-1
Five ways to talk about the future in the past.
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-15/session-1
The future perfect continuous, will + have + been + present participle, emphasises that an action or a repeating series of actions started before a time in the future and is still happening at that time in the future.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-30/session-2/activity-3
The future perfect, will + have + past participle, is used to talk about a time in the future by when a particular activity will be completed.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-26/session-2/activity-3
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-13/session-1
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-13/session-4
Different ways of talking about the future.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-17/session-2/activity-3
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-24/session-1
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-2/session-1
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-24/session-4
Verbs which change meaning when followed by the gerund or infinitive form.
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-9/session-1
The main difference is to do with certainty.
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-21/session-1
Five different ways of saying if without using if.
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-18/session-1
Indefinite articles, a and an, are not used with plural nouns or uncountable nouns. They are used
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-10/session-1
Indirect questions help us to be more formal or polite.
We use infinitives of purpose to explain why we're doing something.
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-6/session-1
Linking devices are used to link one idea or argument to another. A common situation is when we are talking about something that happens and its result, or a cause and its effect.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-10/session-2/activity-3
Link verbs are followed by a word that gives information about the subject itself.
https://learnenglish.britishcouncil.org/en/english-grammar/clause-phrase-and-sentence/verb-patterns/link-verbs http://dictionary.cambridge.org/grammar/british-grammar/about-verbs/verbs-types#verbs-types__2
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-22/session-4
Can, could, be able to, and manage to.
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-30/session-2/activity-3
Might, may, could, must and can't.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-6/session-2/activity-3
Narrative tenses are used to describe events that happened in the past, and for telling stories.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-20/session-2/activity-3
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-26/session-1
We use this form when we talk about something that must be done, but we choose not to say who needs to do it. This is often because the person who needs to do it is unknown, obvious or unimportant.
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-14/session-1
Non-defining relative clauses...
Using a present participle clause can give a reason for the action in the main clause.
Perfect participle forms, Having + past participle, show that the action in the participle clause was finished before the action in the main clause.
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-17/session-1
Participle clauses are clauses that begin with present or past participles. Participle clauses can be used when the participle and the verb in the main clause have the same subject. Participle clauses with past participles have a passive meaning.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-27/session-2/activity-3
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-29/session-1
Four situations in which the agent can be left out.
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-6/session-1
Five ways to use the past for the present or future.
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-8/session-1
The past perfect continuous, had + been + present participle, describes an action which started in the past and continued up to another point in the past.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-14/session-2/activity-3
The past perfect, had + past participle, describes something that happened before an action described using past simple.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-7/session-2/activity-3
The past simple is used to describe an action that happened and finished in the past.
The past continuous, was/were + present participle, is used to describe an action that was in progress at a particular time in the past but not completed.
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-7/session-2/activity-4
The past simple describes an action that happened and finished in the past.
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-6/session-2/activity-5
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-4/session-2/activity-3
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-21/session-2/activity-3
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-23/session-1
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-23/session-4
We use will to make predictions about the future when we are certain that something is going to happen.
We use be going to when our prediction is based on a present situation or evidence.
We use might to show future posibility.
We use be likely to when we think something will happen, but we are not certain.
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-28/session-2/activity-3
We use might, may or could to talk about the possibility of something in the present or the future, when we are making a guess about a present situation, or we aren't sure if something will happen in the future.
We use might not and may not to talk about negative possibility. We don't use counld not in the same way as might not and may not. Could not means that something is impossible.
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-16/session-2/activity-3
We can use the present continuous, be + present participle, to talk about the future when we have already arranged to do something.
We can use be + going + to-infinitive to talk about something that we have decided to do in the future, but not arranged yet.
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-9/session-2/activity-3
Using the present to talk about the past.
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-3/session-1
The present perfect is used for life experiences, recent past actions that are important now, past situations that are still happening now, and answering 'How long' questions usually with for or since.
The past simple is used for completed actions in the past.
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-26/session-2/activity-3
The present perfect continuous, have + been + present participle, is used to describe an activity that started in the past and is continuing now or has recently finished.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-2/session-2/activity-3
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-11/session-2/activity-5
The present perfect is often used with
to talk about situations that started in the past and are continuing now.
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-12/session-2/activity-4
The present perfect is often used with
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-14/session-2/activity-3
The present simple is used to describe things that we do regularly, facts, habits, truths and permanent situations.
The present continuous, be + present participle, is used to describe things that are happening at the time we are speaking, temporary situations and activities that are in progress. Stative verbs are not usually used in the present continuous.
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-2/session-2/activity-3
We use the present simple tense for things that we do regularly and for facts, habits, truths and permanent situations.
We use the present continuous for things that are happening at the time we are speaking, for temporary situations, and for activities that are in progress.
We use the present perfect for life experiences in the past, recent past actions that are important now, and past situations that are still happening now, often with how long, for and since; with just, already, yet for recent events.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-1/session-2/activity-3
Quantifiers are words that give us information about the number of something: how much or how many.
All, every and each mean the whole number of something in a group.
Both, neither and either are used to talk about two people or things.
https://learnenglish.britishcouncil.org/en/english-grammar/determiners-and-quantifiers/quantifiers http://dictionary.cambridge.org/grammar/british-grammar/quantifiers/
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-3/session-2/activity-3
Two types of relative clause:
The second conditional is used to talk about impossible, unlikely or imaginary situations and their possible results.
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-24/session-2/activity-3
Action verbs describe things we do or things that happen. Action verbs can be used in all tenses.
State verbs describe attitudes, thoughts, senses or belonging. Sometimes, state verbs can also describe actions. Most state verbs are not used in the continuous form.
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-25/session-2/activity-3
Some state verbs can be used in the continuous form
http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-5/session-1
We use the present simple for things that we do regularly and for permanent situations.
We use the present continuous for things that are happening now and for temporary situations.
We use the past simple tense when an action or situation happens and finishes in the past.
We use the present perfect to talk about our experiences in the past often with ever or never; to talk about situations that started in the past and are continuing now often with how long, for or since; to say whether an action has happened or not at the present time with just, already or yet.
We use the present continuous to talk about the future when we have made an arrangement to do something.
We use be going to + infinitive for future plans.
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-20/session-2/activity-3
The third conditional is used for imaginary situations in the past and their imaginary results.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-9/session-2/activity-3
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-1/session-1
Subject + used to + infinitive is used to refer to things in the past which are no longer true. It can refer to repeated actions or to a state or situation.
Subject+ would + infinitive is used only for repeated actions, not for a state or situation.
http://learnenglish.britishcouncil.org/en/quick-grammar/past-habit-used-towouldpast-simple http://dictionary.cambridge.org/grammar/british-grammar/past/used-to
http://learnenglish.britishcouncil.org/en/quick-grammar/used-infinitive-and-beget-used http://dictionary.cambridge.org/grammar/british-grammar/past/used-to
Subject + used to + infinitive is used to refer to things in the past which are no longer true. It can refer to repeated actions or to a state or situation.
Negative form
Question form
http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-10/session-2/activity-3
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-29/session-2/activity-3
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-16/session-4
Would is used
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-4/session-1
There are different types of nouns that don't require an article.
http://www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-9/session-1
Zero conditional is used to talk about things which always happen in particular situations.
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-5/session-2/activity-3
http://www.bbc.co.uk/worldservice/learningenglish/radio/specials/142_requests_offers/page9.shtml
Present verb forms can be used to talk about past actions.
http://www.bbc.co.uk/worldservice/learningenglish/grammar/pron/sounds/
https://learnenglish.britishcouncil.org/en/english-grammar/adverbials/adverbials-time/time-and-dates http://dictionary.cambridge.org/grammar/british-grammar/at-on-and-in-time
http://www.bbc.co.uk/learningenglish/english/course/intermediate/unit-2/session-1