English verb conjugation
COULD DRIVES

Regular verb: drives - drivesed - drivesed

Affirmation

Simple form	V-ing form
I could drives you could drives he could drives we could drives you could drives they could drives	I could be drivesing you could be drivesing he could be drivesing we could be drivesing you could be drivesing they could be drivesing
Perfect	V-ing perfect
I could have drivesed you could have drivesed he could have drivesed we could have drivesed you could have drivesed they could have drivesed	I could have been drivesing you could have been drivesing he could have been drivesing we could have been drivesing you could have been drivesing they could have been drivesing

Negation

Simple form	V-ing form
I couldn't drives you couldn't drives he couldn't drives we couldn't drives you couldn't drives they couldn't drives	I couldn't be drivesing you couldn't be drivesing he couldn't be drivesing we couldn't be drivesing you couldn't be drivesing they couldn't be drivesing
Perfect	V-ing perfect
I couldn't have drivesed you couldn't have drivesed he couldn't have drivesed we couldn't have drivesed you couldn't have drivesed they couldn't have drivesed	I couldn't have been drivesing you couldn't have been drivesing he couldn't have been drivesing we couldn't have been drivesing you couldn't have been drivesing they couldn't have been drivesing

Interrogative form

Simple form	V-ing form
could I drives? could you drives? could he drives? could we drives? could you drives? could they drives?	could I be drivesing? could you be drivesing? could he be drivesing? could we be drivesing? could you be drivesing? could they be drivesing?
Perfect	V-ing perfect
could I have drivesed? could you have drivesed? could he have drivesed? could we have drivesed? could you have drivesed? could they have drivesed?	could I have been drivesing? could you have been drivesing? could he have been drivesing? could we have been drivesing? could you have been drivesing? could they have been drivesing?

Interro-negative form

Simple form	V-ing form
couldn't I drives? couldn't you drives? couldn't he drives? couldn't we drives? couldn't you drives? couldn't they drives?	couldn't I be drivesing? couldn't you be drivesing? couldn't he be drivesing? couldn't we be drivesing? couldn't you be drivesing? couldn't they be drivesing?
Perfect	V-ing perfect
couldn't I have drivesed? couldn't you have drivesed? couldn't he have drivesed? couldn't we have drivesed? couldn't you have drivesed? couldn't they have drivesed?	couldn't I have been drivesing? couldn't you have been drivesing? couldn't he have been drivesing? couldn't we have been drivesing? couldn't you have been drivesing? couldn't they have been drivesing?