I could conform you could conform he could conform we could conform you could conform they could conform
V-ing form
I could be conforming you could be conforming he could be conforming we could be conforming you could be conforming they could be conforming
Perfect
I could have conformed you could have conformed he could have conformed we could have conformed you could have conformed they could have conformed
V-ing perfect
I could have been conforming you could have been conforming he could have been conforming we could have been conforming you could have been conforming they could have been conforming
Negation
Simple form
I couldn't conform you couldn't conform he couldn't conform we couldn't conform you couldn't conform they couldn't conform
V-ing form
I couldn't be conforming you couldn't be conforming he couldn't be conforming we couldn't be conforming you couldn't be conforming they couldn't be conforming
Perfect
I couldn't have conformed you couldn't have conformed he couldn't have conformed we couldn't have conformed you couldn't have conformed they couldn't have conformed
V-ing perfect
I couldn't have been conforming you couldn't have been conforming he couldn't have been conforming we couldn't have been conforming you couldn't have been conforming they couldn't have been conforming
Interrogative form
Simple form
could I conform? could you conform? could he conform? could we conform? could you conform? could they conform?
V-ing form
could I be conforming? could you be conforming? could he be conforming? could we be conforming? could you be conforming? could they be conforming?
Perfect
could I have conformed? could you have conformed? could he have conformed? could we have conformed? could you have conformed? could they have conformed?
V-ing perfect
could I have been conforming? could you have been conforming? could he have been conforming? could we have been conforming? could you have been conforming? could they have been conforming?
Interro-negative form
Simple form
couldn't I conform? couldn't you conform? couldn't he conform? couldn't we conform? couldn't you conform? couldn't they conform?
V-ing form
couldn't I be conforming? couldn't you be conforming? couldn't he be conforming? couldn't we be conforming? couldn't you be conforming? couldn't they be conforming?
Perfect
couldn't I have conformed? couldn't you have conformed? couldn't he have conformed? couldn't we have conformed? couldn't you have conformed? couldn't they have conformed?
V-ing perfect
couldn't I have been conforming? couldn't you have been conforming? couldn't he have been conforming? couldn't we have been conforming? couldn't you have been conforming? couldn't they have been conforming?