I could procrastinate you could procrastinate she could procrastinate we could procrastinate you could procrastinate they could procrastinate
V-ing form
I could be procrastinating you could be procrastinating she could be procrastinating we could be procrastinating you could be procrastinating they could be procrastinating
Perfect
I could have procrastinated you could have procrastinated she could have procrastinated we could have procrastinated you could have procrastinated they could have procrastinated
V-ing perfect
I could have been procrastinating you could have been procrastinating she could have been procrastinating we could have been procrastinating you could have been procrastinating they could have been procrastinating
Negation
Simple form
I couldn't procrastinate you couldn't procrastinate she couldn't procrastinate we couldn't procrastinate you couldn't procrastinate they couldn't procrastinate
V-ing form
I couldn't be procrastinating you couldn't be procrastinating she couldn't be procrastinating we couldn't be procrastinating you couldn't be procrastinating they couldn't be procrastinating
Perfect
I couldn't have procrastinated you couldn't have procrastinated she couldn't have procrastinated we couldn't have procrastinated you couldn't have procrastinated they couldn't have procrastinated
V-ing perfect
I couldn't have been procrastinating you couldn't have been procrastinating she couldn't have been procrastinating we couldn't have been procrastinating you couldn't have been procrastinating they couldn't have been procrastinating
Interrogative form
Simple form
could I procrastinate? could you procrastinate? could she procrastinate? could we procrastinate? could you procrastinate? could they procrastinate?
V-ing form
could I be procrastinating? could you be procrastinating? could she be procrastinating? could we be procrastinating? could you be procrastinating? could they be procrastinating?
Perfect
could I have procrastinated? could you have procrastinated? could she have procrastinated? could we have procrastinated? could you have procrastinated? could they have procrastinated?
V-ing perfect
could I have been procrastinating? could you have been procrastinating? could she have been procrastinating? could we have been procrastinating? could you have been procrastinating? could they have been procrastinating?
Interro-negative form
Simple form
couldn't I procrastinate? couldn't you procrastinate? couldn't she procrastinate? couldn't we procrastinate? couldn't you procrastinate? couldn't they procrastinate?
V-ing form
couldn't I be procrastinating? couldn't you be procrastinating? couldn't she be procrastinating? couldn't we be procrastinating? couldn't you be procrastinating? couldn't they be procrastinating?
Perfect
couldn't I have procrastinated? couldn't you have procrastinated? couldn't she have procrastinated? couldn't we have procrastinated? couldn't you have procrastinated? couldn't they have procrastinated?
V-ing perfect
couldn't I have been procrastinating? couldn't you have been procrastinating? couldn't she have been procrastinating? couldn't we have been procrastinating? couldn't you have been procrastinating? couldn't they have been procrastinating?