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