English verb conjugation
COULD CLAP

Regular verb: clap - clapped - clapped

Affirmation

Simple form	V-ing form
I could clap you could clap he could clap we could clap you could clap they could clap	I could be clapping you could be clapping he could be clapping we could be clapping you could be clapping they could be clapping
Perfect	V-ing perfect
I could have clapped you could have clapped he could have clapped we could have clapped you could have clapped they could have clapped	I could have been clapping you could have been clapping he could have been clapping we could have been clapping you could have been clapping they could have been clapping

Negation

Simple form	V-ing form
I could not clap you could not clap he could not clap we could not clap you could not clap they could not clap	I could not be clapping you could not be clapping he could not be clapping we could not be clapping you could not be clapping they could not be clapping
Perfect	V-ing perfect
I could not have clapped you could not have clapped he could not have clapped we could not have clapped you could not have clapped they could not have clapped	I could not have been clapping you could not have been clapping he could not have been clapping we could not have been clapping you could not have been clapping they could not have been clapping

Interrogative form

Simple form	V-ing form
could I clap? could you clap? could he clap? could we clap? could you clap? could they clap?	could I be clapping? could you be clapping? could he be clapping? could we be clapping? could you be clapping? could they be clapping?
Perfect	V-ing perfect
could I have clapped? could you have clapped? could he have clapped? could we have clapped? could you have clapped? could they have clapped?	could I have been clapping? could you have been clapping? could he have been clapping? could we have been clapping? could you have been clapping? could they have been clapping?

Interro-negative form

Simple form	V-ing form
could I not clap? could you not clap? could he not clap? could we not clap? could you not clap? could they not clap?	could I not be clapping? could you not be clapping? could he not be clapping? could we not be clapping? could you not be clapping? could they not be clapping?
Perfect	V-ing perfect
could I not have clapped? could you not have clapped? could he not have clapped? could we not have clapped? could you not have clapped? could they not have clapped?	could I not have been clapping? could you not have been clapping? could he not have been clapping? could we not have been clapping? could you not have been clapping? could they not have been clapping?