I can clap you can clap he can clap we can clap you can clap they can clap
V-ing form
I can be clapping you can be clapping he can be clapping we can be clapping you can be clapping they can be clapping
Perfect
I can have clapped you can have clapped he can have clapped we can have clapped you can have clapped they can have clapped
V-ing perfect
I can have been clapping you can have been clapping he can have been clapping we can have been clapping you can have been clapping they can have been clapping
Negation
Simple form
I can't clap you can't clap he can't clap we can't clap you can't clap they can't clap
V-ing form
I can't be clapping you can't be clapping he can't be clapping we can't be clapping you can't be clapping they can't be clapping
Perfect
I can't have clapped you can't have clapped he can't have clapped we can't have clapped you can't have clapped they can't have clapped
V-ing perfect
I can't have been clapping you can't have been clapping he can't have been clapping we can't have been clapping you can't have been clapping they can't have been clapping
Interrogative form
Simple form
can I clap? can you clap? can he clap? can we clap? can you clap? can they clap?
V-ing form
can I be clapping? can you be clapping? can he be clapping? can we be clapping? can you be clapping? can they be clapping?
Perfect
can I have clapped? can you have clapped? can he have clapped? can we have clapped? can you have clapped? can they have clapped?
V-ing perfect
can I have been clapping? can you have been clapping? can he have been clapping? can we have been clapping? can you have been clapping? can they have been clapping?
Interro-negative form
Simple form
can't I clap? can't you clap? can't he clap? can't we clap? can't you clap? can't they clap?
V-ing form
can't I be clapping? can't you be clapping? can't he be clapping? can't we be clapping? can't you be clapping? can't they be clapping?
Perfect
can't I have clapped? can't you have clapped? can't he have clapped? can't we have clapped? can't you have clapped? can't they have clapped?
V-ing perfect
can't I have been clapping? can't you have been clapping? can't he have been clapping? can't we have been clapping? can't you have been clapping? can't they have been clapping?