can sulk
Regular verb: sulk - sulked- sulked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can sulk
you can sulk
she can sulk
we can sulk
you can sulk
they can sulk 	I can be sulking
you can be sulking
she can be sulking
we can be sulking
you can be sulking
they can be sulking	I can have sulked
you can have sulked
she can have sulked
we can have sulked
you can have sulked
they can have sulked	I can have been sulking
you can have been sulking
she can have been sulking
we can have been sulking
you can have been sulking
they can have been sulking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't sulk
you can't sulk
she can't sulk
we can't sulk
you can't sulk
they can't sulk 	I can't be sulking
you can't be sulking
she can't be sulking
we can't be sulking
you can't be sulking
they can't be sulking	I can't have sulked
you can't have sulked
she can't have sulked
we can't have sulked
you can't have sulked
they can't have sulked	I can't have been sulking
you can't have been sulking
she can't have been sulking
we can't have been sulking
you can't have been sulking
they can't have been sulking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I sulk?
can you sulk?
can she sulk?
can we sulk?
can you sulk?
can they sulk? 	can I be sulking?
can you be sulking?
can she be sulking?
can we be sulking?
can you be sulking?
can they be sulking? 	can I have sulked?
can you have sulked?
can she have sulked?
can we have sulked?
can you have sulked?
can they have sulked? 	can I have been sulking?
can you have been sulking?
can she have been sulking?
can we have been sulking?
can you have been sulking?
can they have been sulking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I sulk?
can't you sulk?
can't she sulk?
can't we sulk?
can't you sulk?
can't they sulk? 	can't I be sulking?
can't you be sulking?
can't she be sulking?
can't we be sulking?
can't you be sulking?
can't they be sulking? 	can't I have sulked?
can't you have sulked?
can't she have sulked?
can't we have sulked?
can't you have sulked?
can't they have sulked? 	can't I have been sulking?
can't you have been sulking?
can't she have been sulking?
can't we have been sulking?
can't you have been sulking?
can't they have been sulking?