Tenses' Structures - Grammar

All perfect tenses require:

• "have" or "had" and the verb (-ed/-d) or 3^rd form

• "have", "has", "had"

• "have" or "has" and the verb (-ing)

• "had", "have" or "having" and the verb in 3^rd form

All continuous tenses have:

• "will"

• "do"

• "-ing"

• "-ed"

Which auxiliary verb (operator) do we use for Past Simple?

• "have"

• "do"

• "will"

• "did"

How many present tenses there are?

• 2

• 4

• 6

• 8

Describe the structure of an indicative sentence in Present Perfect Simple.

Describe the structure of a question in Future Simple.

Describe the structure of a negative sentence in Past Perfect Continuous.

Describe the structure of a question in Present Continuous.

Describe the structure of an indicative sentence in Past Continuous.

Describe the structure of a negative sentence in Present Simple.