UNIT 5 :
Present perfect
Structure
Uses
Neg: S+haven't/hasn't+past participle+complements
?: Have/has+S+past participle+complements
Aff: S+have/has+past participle+complememnts
An action have finished
Actions that have occurred within an unspecified time period
Something that happened in the past and has a relation in the present
I have played in football team
I have read that book.
I have already finished my homework.
Used to
Structure
Types
Be used to
Get used to
Used to
Used when you are getting used to something new.
Used to talk about something you are already used to in the present.
Used to talk about something you used to do in the past but no longer do.
Positive
Question
Negative
Did + S + use to + infinitive verb?
S + used to + infinitive verb.
S + did not (didn't) + use to + infinitive verb.
click to edit