can swim
Verbo irregular: swim - swam- swum

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can swim
you can swim
he can swim
we can swim
you can swim
they can swim 	I can be swimming
you can be swimming
he can be swimming
we can be swimming
you can be swimming
they can be swimming	I can have swum
you can have swum
he can have swum
we can have swum
you can have swum
they can have swum	I can have been swimming
you can have been swimming
he can have been swimming
we can have been swimming
you can have been swimming
they can have been swimming	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot swim
you cannot swim
he cannot swim
we cannot swim
you cannot swim
they cannot swim 	I cannot be swimming
you cannot be swimming
he cannot be swimming
we cannot be swimming
you cannot be swimming
they cannot be swimming	I cannot have swum
you cannot have swum
he cannot have swum
we cannot have swum
you cannot have swum
they cannot have swum	I cannot have been swimming
you cannot have been swimming
he cannot have been swimming
we cannot have been swimming
you cannot have been swimming
they cannot have been swimming	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I swim?
can you swim?
can he swim?
can we swim?
can you swim?
can they swim? 	can I be swimming?
can you be swimming?
can he be swimming?
can we be swimming?
can you be swimming?
can they be swimming? 	can I have swum?
can you have swum?
can he have swum?
can we have swum?
can you have swum?
can they have swum? 	can I have been swimming?
can you have been swimming?
can he have been swimming?
can we have been swimming?
can you have been swimming?
can they have been swimming? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not swim?
can you not swim?
can he not swim?
can we not swim?
can you not swim?
can they not swim? 	can I not be swimming?
can you not be swimming?
can he not be swimming?
can we not be swimming?
can you not be swimming?
can they not be swimming? 	can I not have swum?
can you not have swum?
can he not have swum?
can we not have swum?
can you not have swum?
can they not have swum? 	can I not have been swimming?
can you not have been swimming?
can he not have been swimming?
can we not have been swimming?
can you not have been swimming?
can they not have been swimming?