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