I could fast-talk you could fast-talk she could fast-talk we could fast-talk you could fast-talk they could fast-talk
V-ing form
I could be fast-talking you could be fast-talking she could be fast-talking we could be fast-talking you could be fast-talking they could be fast-talking
Perfect
I could have fast-talked you could have fast-talked she could have fast-talked we could have fast-talked you could have fast-talked they could have fast-talked
V-ing perfect
I could have been fast-talking you could have been fast-talking she could have been fast-talking we could have been fast-talking you could have been fast-talking they could have been fast-talking
Negation
Simple form
I couldn't fast-talk you couldn't fast-talk she couldn't fast-talk we couldn't fast-talk you couldn't fast-talk they couldn't fast-talk
V-ing form
I couldn't be fast-talking you couldn't be fast-talking she couldn't be fast-talking we couldn't be fast-talking you couldn't be fast-talking they couldn't be fast-talking
Perfect
I couldn't have fast-talked you couldn't have fast-talked she couldn't have fast-talked we couldn't have fast-talked you couldn't have fast-talked they couldn't have fast-talked
V-ing perfect
I couldn't have been fast-talking you couldn't have been fast-talking she couldn't have been fast-talking we couldn't have been fast-talking you couldn't have been fast-talking they couldn't have been fast-talking
Interrogative form
Simple form
could I fast-talk? could you fast-talk? could she fast-talk? could we fast-talk? could you fast-talk? could they fast-talk?
V-ing form
could I be fast-talking? could you be fast-talking? could she be fast-talking? could we be fast-talking? could you be fast-talking? could they be fast-talking?
Perfect
could I have fast-talked? could you have fast-talked? could she have fast-talked? could we have fast-talked? could you have fast-talked? could they have fast-talked?
V-ing perfect
could I have been fast-talking? could you have been fast-talking? could she have been fast-talking? could we have been fast-talking? could you have been fast-talking? could they have been fast-talking?
Interro-negative form
Simple form
couldn't I fast-talk? couldn't you fast-talk? couldn't she fast-talk? couldn't we fast-talk? couldn't you fast-talk? couldn't they fast-talk?
V-ing form
couldn't I be fast-talking? couldn't you be fast-talking? couldn't she be fast-talking? couldn't we be fast-talking? couldn't you be fast-talking? couldn't they be fast-talking?
Perfect
couldn't I have fast-talked? couldn't you have fast-talked? couldn't she have fast-talked? couldn't we have fast-talked? couldn't you have fast-talked? couldn't they have fast-talked?
V-ing perfect
couldn't I have been fast-talking? couldn't you have been fast-talking? couldn't she have been fast-talking? couldn't we have been fast-talking? couldn't you have been fast-talking? couldn't they have been fast-talking?