can drum
Verbo regular: drum - drummed- drummed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can drum
you can drum
he can drum
we can drum
you can drum
they can drum 	I can be drumming
you can be drumming
he can be drumming
we can be drumming
you can be drumming
they can be drumming	I can have drummed
you can have drummed
he can have drummed
we can have drummed
you can have drummed
they can have drummed	I can have been drumming
you can have been drumming
he can have been drumming
we can have been drumming
you can have been drumming
they can have been drumming	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't drum
you can't drum
he can't drum
we can't drum
you can't drum
they can't drum 	I can't be drumming
you can't be drumming
he can't be drumming
we can't be drumming
you can't be drumming
they can't be drumming	I can't have drummed
you can't have drummed
he can't have drummed
we can't have drummed
you can't have drummed
they can't have drummed	I can't have been drumming
you can't have been drumming
he can't have been drumming
we can't have been drumming
you can't have been drumming
they can't have been drumming	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I drum?
can you drum?
can he drum?
can we drum?
can you drum?
can they drum? 	can I be drumming?
can you be drumming?
can he be drumming?
can we be drumming?
can you be drumming?
can they be drumming? 	can I have drummed?
can you have drummed?
can he have drummed?
can we have drummed?
can you have drummed?
can they have drummed? 	can I have been drumming?
can you have been drumming?
can he have been drumming?
can we have been drumming?
can you have been drumming?
can they have been drumming? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I drum?
can't you drum?
can't he drum?
can't we drum?
can't you drum?
can't they drum? 	can't I be drumming?
can't you be drumming?
can't he be drumming?
can't we be drumming?
can't you be drumming?
can't they be drumming? 	can't I have drummed?
can't you have drummed?
can't he have drummed?
can't we have drummed?
can't you have drummed?
can't they have drummed? 	can't I have been drumming?
can't you have been drumming?
can't he have been drumming?
can't we have been drumming?
can't you have been drumming?
can't they have been drumming?