I can puke you can puke he can puke we can puke you can puke they can puke
V-ing form
I can be puking you can be puking he can be puking we can be puking you can be puking they can be puking
Perfect
I can have puked you can have puked he can have puked we can have puked you can have puked they can have puked
V-ing perfect
I can have been puking you can have been puking he can have been puking we can have been puking you can have been puking they can have been puking
Negation
Simple form
I can't puke you can't puke he can't puke we can't puke you can't puke they can't puke
V-ing form
I can't be puking you can't be puking he can't be puking we can't be puking you can't be puking they can't be puking
Perfect
I can't have puked you can't have puked he can't have puked we can't have puked you can't have puked they can't have puked
V-ing perfect
I can't have been puking you can't have been puking he can't have been puking we can't have been puking you can't have been puking they can't have been puking
Interrogative form
Simple form
can I puke? can you puke? can he puke? can we puke? can you puke? can they puke?
V-ing form
can I be puking? can you be puking? can he be puking? can we be puking? can you be puking? can they be puking?
Perfect
can I have puked? can you have puked? can he have puked? can we have puked? can you have puked? can they have puked?
V-ing perfect
can I have been puking? can you have been puking? can he have been puking? can we have been puking? can you have been puking? can they have been puking?
Interro-negative form
Simple form
can't I puke? can't you puke? can't he puke? can't we puke? can't you puke? can't they puke?
V-ing form
can't I be puking? can't you be puking? can't he be puking? can't we be puking? can't you be puking? can't they be puking?
Perfect
can't I have puked? can't you have puked? can't he have puked? can't we have puked? can't you have puked? can't they have puked?
V-ing perfect
can't I have been puking? can't you have been puking? can't he have been puking? can't we have been puking? can't you have been puking? can't they have been puking?