Simple, continuous, perfect and perfect continuous.

http://www.bbc.co.uk/learningenglish/english/course/towards-advanced/unit-30/session-1

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

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

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 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

• ever: at any time in someone's life.
• never: not at any time in someone's life.

http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-11/session-2/activity-5

The present perfect is often used with

• for meaning throughout a period of time or
• since meaning from a point in time to now

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

• just for something that happened only a short time ago,
• already when an action has happened before now or before we expected it to happen, and
• yet to ask if something has happened before now or to say something has not happened up to now.

http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-14/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

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