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