could puke
Regular verb: puke - puked- puked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could puke
you could puke
she could puke
we could puke
you could puke
they could puke 	I could be puking
you could be puking
she could be puking
we could be puking
you could be puking
they could be puking	I could have puked
you could have puked
she could have puked
we could have puked
you could have puked
they could have puked	I could have been puking
you could have been puking
she could have been puking
we could have been puking
you could have been puking
they could have been puking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't puke
you couldn't puke
she couldn't puke
we couldn't puke
you couldn't puke
they couldn't puke 	I couldn't be puking
you couldn't be puking
she couldn't be puking
we couldn't be puking
you couldn't be puking
they couldn't be puking	I couldn't have puked
you couldn't have puked
she couldn't have puked
we couldn't have puked
you couldn't have puked
they couldn't have puked	I couldn't have been puking
you couldn't have been puking
she couldn't have been puking
we couldn't have been puking
you couldn't have been puking
they couldn't have been puking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I puke?
could you puke?
could she puke?
could we puke?
could you puke?
could they puke? 	could I be puking?
could you be puking?
could she be puking?
could we be puking?
could you be puking?
could they be puking? 	could I have puked?
could you have puked?
could she have puked?
could we have puked?
could you have puked?
could they have puked? 	could I have been puking?
could you have been puking?
could she have been puking?
could we have been puking?
could you have been puking?
could they have been puking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I puke?
couldn't you puke?
couldn't she puke?
couldn't we puke?
couldn't you puke?
couldn't they puke? 	couldn't I be puking?
couldn't you be puking?
couldn't she be puking?
couldn't we be puking?
couldn't you be puking?
couldn't they be puking? 	couldn't I have puked?
couldn't you have puked?
couldn't she have puked?
couldn't we have puked?
couldn't you have puked?
couldn't they have puked? 	couldn't I have been puking?
couldn't you have been puking?
couldn't she have been puking?
couldn't we have been puking?
couldn't you have been puking?
couldn't they have been puking?