can underwork
Verbo regular: underwork - underworked- underworked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can underwork
you can underwork
he can underwork
we can underwork
you can underwork
they can underwork 	I can be underworking
you can be underworking
he can be underworking
we can be underworking
you can be underworking
they can be underworking	I can have underworked
you can have underworked
he can have underworked
we can have underworked
you can have underworked
they can have underworked	I can have been underworking
you can have been underworking
he can have been underworking
we can have been underworking
you can have been underworking
they can have been underworking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot underwork
you cannot underwork
he cannot underwork
we cannot underwork
you cannot underwork
they cannot underwork 	I cannot be underworking
you cannot be underworking
he cannot be underworking
we cannot be underworking
you cannot be underworking
they cannot be underworking	I cannot have underworked
you cannot have underworked
he cannot have underworked
we cannot have underworked
you cannot have underworked
they cannot have underworked	I cannot have been underworking
you cannot have been underworking
he cannot have been underworking
we cannot have been underworking
you cannot have been underworking
they cannot have been underworking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I underwork?
can you underwork?
can he underwork?
can we underwork?
can you underwork?
can they underwork? 	can I be underworking?
can you be underworking?
can he be underworking?
can we be underworking?
can you be underworking?
can they be underworking? 	can I have underworked?
can you have underworked?
can he have underworked?
can we have underworked?
can you have underworked?
can they have underworked? 	can I have been underworking?
can you have been underworking?
can he have been underworking?
can we have been underworking?
can you have been underworking?
can they have been underworking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not underwork?
can you not underwork?
can he not underwork?
can we not underwork?
can you not underwork?
can they not underwork? 	can I not be underworking?
can you not be underworking?
can he not be underworking?
can we not be underworking?
can you not be underworking?
can they not be underworking? 	can I not have underworked?
can you not have underworked?
can he not have underworked?
can we not have underworked?
can you not have underworked?
can they not have underworked? 	can I not have been underworking?
can you not have been underworking?
can he not have been underworking?
can we not have been underworking?
can you not have been underworking?
can they not have been underworking?