English verb conjugation
CAN CLOWN

Regular verb: clown - clowned - clowned

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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