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