can swab
Verbo regular: swab - swabed- swabed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can swab
you can swab
he can swab
we can swab
you can swab
they can swab 	I can be swabing
you can be swabing
he can be swabing
we can be swabing
you can be swabing
they can be swabing	I can have swabed
you can have swabed
he can have swabed
we can have swabed
you can have swabed
they can have swabed	I can have been swabing
you can have been swabing
he can have been swabing
we can have been swabing
you can have been swabing
they can have been swabing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot swab
you cannot swab
he cannot swab
we cannot swab
you cannot swab
they cannot swab 	I cannot be swabing
you cannot be swabing
he cannot be swabing
we cannot be swabing
you cannot be swabing
they cannot be swabing	I cannot have swabed
you cannot have swabed
he cannot have swabed
we cannot have swabed
you cannot have swabed
they cannot have swabed	I cannot have been swabing
you cannot have been swabing
he cannot have been swabing
we cannot have been swabing
you cannot have been swabing
they cannot have been swabing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I swab?
can you swab?
can he swab?
can we swab?
can you swab?
can they swab? 	can I be swabing?
can you be swabing?
can he be swabing?
can we be swabing?
can you be swabing?
can they be swabing? 	can I have swabed?
can you have swabed?
can he have swabed?
can we have swabed?
can you have swabed?
can they have swabed? 	can I have been swabing?
can you have been swabing?
can he have been swabing?
can we have been swabing?
can you have been swabing?
can they have been swabing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not swab?
can you not swab?
can he not swab?
can we not swab?
can you not swab?
can they not swab? 	can I not be swabing?
can you not be swabing?
can he not be swabing?
can we not be swabing?
can you not be swabing?
can they not be swabing? 	can I not have swabed?
can you not have swabed?
can he not have swabed?
can we not have swabed?
can you not have swabed?
can they not have swabed? 	can I not have been swabing?
can you not have been swabing?
can he not have been swabing?
can we not have been swabing?
can you not have been swabing?
can they not have been swabing?