can choke
Regular verb: choke - choked- choked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can choke
you can choke
he can choke
we can choke
you can choke
they can choke 	I can be choking
you can be choking
he can be choking
we can be choking
you can be choking
they can be choking	I can have choked
you can have choked
he can have choked
we can have choked
you can have choked
they can have choked	I can have been choking
you can have been choking
he can have been choking
we can have been choking
you can have been choking
they can have been choking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot choke
you cannot choke
he cannot choke
we cannot choke
you cannot choke
they cannot choke 	I cannot be choking
you cannot be choking
he cannot be choking
we cannot be choking
you cannot be choking
they cannot be choking	I cannot have choked
you cannot have choked
he cannot have choked
we cannot have choked
you cannot have choked
they cannot have choked	I cannot have been choking
you cannot have been choking
he cannot have been choking
we cannot have been choking
you cannot have been choking
they cannot have been choking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I choke?
can you choke?
can he choke?
can we choke?
can you choke?
can they choke? 	can I be choking?
can you be choking?
can he be choking?
can we be choking?
can you be choking?
can they be choking? 	can I have choked?
can you have choked?
can he have choked?
can we have choked?
can you have choked?
can they have choked? 	can I have been choking?
can you have been choking?
can he have been choking?
can we have been choking?
can you have been choking?
can they have been choking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not choke?
can you not choke?
can he not choke?
can we not choke?
can you not choke?
can they not choke? 	can I not be choking?
can you not be choking?
can he not be choking?
can we not be choking?
can you not be choking?
can they not be choking? 	can I not have choked?
can you not have choked?
can he not have choked?
can we not have choked?
can you not have choked?
can they not have choked? 	can I not have been choking?
can you not have been choking?
can he not have been choking?
can we not have been choking?
can you not have been choking?
can they not have been choking?