can gag
Verbo regular: gag - gagged- gagged

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can gag
you can gag
he can gag
we can gag
you can gag
they can gag 	I can be gagging
you can be gagging
he can be gagging
we can be gagging
you can be gagging
they can be gagging	I can have gagged
you can have gagged
he can have gagged
we can have gagged
you can have gagged
they can have gagged	I can have been gagging
you can have been gagging
he can have been gagging
we can have been gagging
you can have been gagging
they can have been gagging	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot gag
you cannot gag
he cannot gag
we cannot gag
you cannot gag
they cannot gag 	I cannot be gagging
you cannot be gagging
he cannot be gagging
we cannot be gagging
you cannot be gagging
they cannot be gagging	I cannot have gagged
you cannot have gagged
he cannot have gagged
we cannot have gagged
you cannot have gagged
they cannot have gagged	I cannot have been gagging
you cannot have been gagging
he cannot have been gagging
we cannot have been gagging
you cannot have been gagging
they cannot have been gagging	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I gag?
can you gag?
can he gag?
can we gag?
can you gag?
can they gag? 	can I be gagging?
can you be gagging?
can he be gagging?
can we be gagging?
can you be gagging?
can they be gagging? 	can I have gagged?
can you have gagged?
can he have gagged?
can we have gagged?
can you have gagged?
can they have gagged? 	can I have been gagging?
can you have been gagging?
can he have been gagging?
can we have been gagging?
can you have been gagging?
can they have been gagging? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not gag?
can you not gag?
can he not gag?
can we not gag?
can you not gag?
can they not gag? 	can I not be gagging?
can you not be gagging?
can he not be gagging?
can we not be gagging?
can you not be gagging?
can they not be gagging? 	can I not have gagged?
can you not have gagged?
can he not have gagged?
can we not have gagged?
can you not have gagged?
can they not have gagged? 	can I not have been gagging?
can you not have been gagging?
can he not have been gagging?
can we not have been gagging?
can you not have been gagging?
can they not have been gagging?