- Grammar

A - indefinite article

We use 'a' before singular count-nouns that begin with consonants, when we first refer to something in written text.

Future Simple

The Future Simple indicates that an action is in the future relative to the speaker or writer. The future is also formed with the use of a form of "go" plus the infinitive of the verb. English can even use the present to suggest the future tense.

Past Perfect

The Past Perfect indicates that an action was completed (finished or "perfected") at some point in the past before something else happened.

Future Perfect

The Future Perfect indicates that an action will have been completed (finished or "perfected") at some point in the future.

Past Perfect Continuous

The Past Perfect Continuous indicates a continuous action that was completed at some point in the past.

Third conditional

Is used in unreal or hypothetical situations, when we are talking about past, or rather about a situation that was not so in the past.

Past Simple

The Past Simple indicates that an action is in the past relative to the speaker or writer. It is used when the time period has finished, when the time period is definite and with “for”, when the action is finished.