English verb conjugation
COULD CLOWN

Regular verb: clown - clowned - clowned

Affirmation

Simple form	V-ing form
I could clown you could clown she could clown we could clown you could clown they could clown	I could be clowning you could be clowning she 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 she 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 she 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 she 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 she 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 she 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 she 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 she clown? could we clown? could you clown? could they clown?	could I be clowning? could you be clowning? could she 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 she 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 she 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 she 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 she 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 she 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 she have been clowning? couldn't we have been clowning? couldn't you have been clowning? couldn't they have been clowning?