1) Which verb forms are Present Perfect? a) had

b) has

c) had had

d) has had

e) have had

2) Which verb forms are used to form the Present Perfect?

a) Infinitiv + -ed

b) had + Infinitiv + -ed

c) had + past participle

d) has + past participle

e) have + Infinitiv + -ed

f) have + past participle

3) What are typical signal words for the Present Perfect?

a) already

b) at the moment

c) ever

d) just

e) usually

f) last night

g) yet​