1
It's used to talk about an action that happened somewhere in the past and is relevant in the present.
2
The verbs we use to create grammatically correct sentenses in present perfect must be in past...
3
These are the verbs whose past and past partciple form changes randomly.
4
These are the verbs whose past and past partciple form ends in -ed.
5
It's one of the common expressions used in the present perfect tense. It's used to describe a point in time.
6
Past participle of the verb "fly".
7
Past participle of the verb "eat".
8
It is the auxiliary of the present perfect tense used with: I, you, they and we.
9
It's one of the common expressions used in the present perfect tense. It's used to describe a period of time.
10
It is the auxiliary of the present perfect tense used with: he, she and it.
