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 could not clown you could not clown he could not clown we could not clown you could not clown they could not clown	I could not be clowning you could not be clowning he could not be clowning we could not be clowning you could not be clowning they could not be clowning
Perfect	V-ing perfect
I could not have clowned you could not have clowned he could not have clowned we could not have clowned you could not have clowned they could not have clowned	I could not have been clowning you could not have been clowning he could not have been clowning we could not have been clowning you could not have been clowning they could not 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
could I not clown? could you not clown? could he not clown? could we not clown? could you not clown? could they not clown?	could I not be clowning? could you not be clowning? could he not be clowning? could we not be clowning? could you not be clowning? could they not be clowning?
Perfect	V-ing perfect
could I not have clowned? could you not have clowned? could he not have clowned? could we not have clowned? could you not have clowned? could they not have clowned?	could I not have been clowning? could you not have been clowning? could he not have been clowning? could we not have been clowning? could you not have been clowning? could they not have been clowning?