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