can underseal
Verbo regular: underseal - undersealed- undersealed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can underseal
you can underseal
he can underseal
we can underseal
you can underseal
they can underseal 	I can be undersealing
you can be undersealing
he can be undersealing
we can be undersealing
you can be undersealing
they can be undersealing	I can have undersealed
you can have undersealed
he can have undersealed
we can have undersealed
you can have undersealed
they can have undersealed	I can have been undersealing
you can have been undersealing
he can have been undersealing
we can have been undersealing
you can have been undersealing
they can have been undersealing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot underseal
you cannot underseal
he cannot underseal
we cannot underseal
you cannot underseal
they cannot underseal 	I cannot be undersealing
you cannot be undersealing
he cannot be undersealing
we cannot be undersealing
you cannot be undersealing
they cannot be undersealing	I cannot have undersealed
you cannot have undersealed
he cannot have undersealed
we cannot have undersealed
you cannot have undersealed
they cannot have undersealed	I cannot have been undersealing
you cannot have been undersealing
he cannot have been undersealing
we cannot have been undersealing
you cannot have been undersealing
they cannot have been undersealing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I underseal?
can you underseal?
can he underseal?
can we underseal?
can you underseal?
can they underseal? 	can I be undersealing?
can you be undersealing?
can he be undersealing?
can we be undersealing?
can you be undersealing?
can they be undersealing? 	can I have undersealed?
can you have undersealed?
can he have undersealed?
can we have undersealed?
can you have undersealed?
can they have undersealed? 	can I have been undersealing?
can you have been undersealing?
can he have been undersealing?
can we have been undersealing?
can you have been undersealing?
can they have been undersealing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not underseal?
can you not underseal?
can he not underseal?
can we not underseal?
can you not underseal?
can they not underseal? 	can I not be undersealing?
can you not be undersealing?
can he not be undersealing?
can we not be undersealing?
can you not be undersealing?
can they not be undersealing? 	can I not have undersealed?
can you not have undersealed?
can he not have undersealed?
can we not have undersealed?
can you not have undersealed?
can they not have undersealed? 	can I not have been undersealing?
can you not have been undersealing?
can he not have been undersealing?
can we not have been undersealing?
can you not have been undersealing?
can they not have been undersealing?