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