can complain
Verbo regular: complain - complained- complained

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can complain
you can complain
she can complain
we can complain
you can complain
they can complain 	I can be complaining
you can be complaining
she can be complaining
we can be complaining
you can be complaining
they can be complaining	I can have complained
you can have complained
she can have complained
we can have complained
you can have complained
they can have complained	I can have been complaining
you can have been complaining
she can have been complaining
we can have been complaining
you can have been complaining
they can have been complaining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't complain
you can't complain
she can't complain
we can't complain
you can't complain
they can't complain 	I can't be complaining
you can't be complaining
she can't be complaining
we can't be complaining
you can't be complaining
they can't be complaining	I can't have complained
you can't have complained
she can't have complained
we can't have complained
you can't have complained
they can't have complained	I can't have been complaining
you can't have been complaining
she can't have been complaining
we can't have been complaining
you can't have been complaining
they can't have been complaining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I complain?
can you complain?
can she complain?
can we complain?
can you complain?
can they complain? 	can I be complaining?
can you be complaining?
can she be complaining?
can we be complaining?
can you be complaining?
can they be complaining? 	can I have complained?
can you have complained?
can she have complained?
can we have complained?
can you have complained?
can they have complained? 	can I have been complaining?
can you have been complaining?
can she have been complaining?
can we have been complaining?
can you have been complaining?
can they have been complaining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I complain?
can't you complain?
can't she complain?
can't we complain?
can't you complain?
can't they complain? 	can't I be complaining?
can't you be complaining?
can't she be complaining?
can't we be complaining?
can't you be complaining?
can't they be complaining? 	can't I have complained?
can't you have complained?
can't she have complained?
can't we have complained?
can't you have complained?
can't they have complained? 	can't I have been complaining?
can't you have been complaining?
can't she have been complaining?
can't we have been complaining?
can't you have been complaining?
can't they have been complaining?