can thump
Regular verb: thump - thumped- thumped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can thump
you can thump
she can thump
we can thump
you can thump
they can thump 	I can be thumping
you can be thumping
she can be thumping
we can be thumping
you can be thumping
they can be thumping	I can have thumped
you can have thumped
she can have thumped
we can have thumped
you can have thumped
they can have thumped	I can have been thumping
you can have been thumping
she can have been thumping
we can have been thumping
you can have been thumping
they can have been thumping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot thump
you cannot thump
she cannot thump
we cannot thump
you cannot thump
they cannot thump 	I cannot be thumping
you cannot be thumping
she cannot be thumping
we cannot be thumping
you cannot be thumping
they cannot be thumping	I cannot have thumped
you cannot have thumped
she cannot have thumped
we cannot have thumped
you cannot have thumped
they cannot have thumped	I cannot have been thumping
you cannot have been thumping
she cannot have been thumping
we cannot have been thumping
you cannot have been thumping
they cannot have been thumping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I thump?
can you thump?
can she thump?
can we thump?
can you thump?
can they thump? 	can I be thumping?
can you be thumping?
can she be thumping?
can we be thumping?
can you be thumping?
can they be thumping? 	can I have thumped?
can you have thumped?
can she have thumped?
can we have thumped?
can you have thumped?
can they have thumped? 	can I have been thumping?
can you have been thumping?
can she have been thumping?
can we have been thumping?
can you have been thumping?
can they have been thumping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not thump?
can you not thump?
can she not thump?
can we not thump?
can you not thump?
can they not thump? 	can I not be thumping?
can you not be thumping?
can she not be thumping?
can we not be thumping?
can you not be thumping?
can they not be thumping? 	can I not have thumped?
can you not have thumped?
can she not have thumped?
can we not have thumped?
can you not have thumped?
can they not have thumped? 	can I not have been thumping?
can you not have been thumping?
can she not have been thumping?
can we not have been thumping?
can you not have been thumping?
can they not have been thumping?