English verb conjugation
COULD CLOWN

Regular verb: clown - clowned - clowned

Affirmation

Simple form	V-ing form
I could clown you could clown he could clown we could clown you could clown they could clown	I could be clowning you could be clowning he could be clowning we could be clowning you could be clowning they could be clowning
Perfect	V-ing perfect
I could have clowned you could have clowned he could have clowned we could have clowned you could have clowned they could have clowned	I could have been clowning you could have been clowning he could have been clowning we could have been clowning you could have been clowning they could have been clowning

Negation

Simple form	V-ing form
I couldn't clown you couldn't clown he couldn't clown we couldn't clown you couldn't clown they couldn't clown	I couldn't be clowning you couldn't be clowning he couldn't be clowning we couldn't be clowning you couldn't be clowning they couldn't be clowning
Perfect	V-ing perfect
I couldn't have clowned you couldn't have clowned he couldn't have clowned we couldn't have clowned you couldn't have clowned they couldn't have clowned	I couldn't have been clowning you couldn't have been clowning he couldn't have been clowning we couldn't have been clowning you couldn't have been clowning they couldn't have been clowning

Interrogative form

Simple form	V-ing form
could I clown? could you clown? could he clown? could we clown? could you clown? could they clown?	could I be clowning? could you be clowning? could he be clowning? could we be clowning? could you be clowning? could they be clowning?
Perfect	V-ing perfect
could I have clowned? could you have clowned? could he have clowned? could we have clowned? could you have clowned? could they have clowned?	could I have been clowning? could you have been clowning? could he have been clowning? could we have been clowning? could you have been clowning? could they have been clowning?

Interro-negative form

Simple form	V-ing form
couldn't I clown? couldn't you clown? couldn't he clown? couldn't we clown? couldn't you clown? couldn't they clown?	couldn't I be clowning? couldn't you be clowning? couldn't he be clowning? couldn't we be clowning? couldn't you be clowning? couldn't they be clowning?
Perfect	V-ing perfect
couldn't I have clowned? couldn't you have clowned? couldn't he have clowned? couldn't we have clowned? couldn't you have clowned? couldn't they have clowned?	couldn't I have been clowning? couldn't you have been clowning? couldn't he have been clowning? couldn't we have been clowning? couldn't you have been clowning? couldn't they have been clowning?