can mothball
Verbo regular: mothball - mothballed- mothballed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can mothball
you can mothball
he can mothball
we can mothball
you can mothball
they can mothball 	I can be mothballing
you can be mothballing
he can be mothballing
we can be mothballing
you can be mothballing
they can be mothballing	I can have mothballed
you can have mothballed
he can have mothballed
we can have mothballed
you can have mothballed
they can have mothballed	I can have been mothballing
you can have been mothballing
he can have been mothballing
we can have been mothballing
you can have been mothballing
they can have been mothballing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot mothball
you cannot mothball
he cannot mothball
we cannot mothball
you cannot mothball
they cannot mothball 	I cannot be mothballing
you cannot be mothballing
he cannot be mothballing
we cannot be mothballing
you cannot be mothballing
they cannot be mothballing	I cannot have mothballed
you cannot have mothballed
he cannot have mothballed
we cannot have mothballed
you cannot have mothballed
they cannot have mothballed	I cannot have been mothballing
you cannot have been mothballing
he cannot have been mothballing
we cannot have been mothballing
you cannot have been mothballing
they cannot have been mothballing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I mothball?
can you mothball?
can he mothball?
can we mothball?
can you mothball?
can they mothball? 	can I be mothballing?
can you be mothballing?
can he be mothballing?
can we be mothballing?
can you be mothballing?
can they be mothballing? 	can I have mothballed?
can you have mothballed?
can he have mothballed?
can we have mothballed?
can you have mothballed?
can they have mothballed? 	can I have been mothballing?
can you have been mothballing?
can he have been mothballing?
can we have been mothballing?
can you have been mothballing?
can they have been mothballing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not mothball?
can you not mothball?
can he not mothball?
can we not mothball?
can you not mothball?
can they not mothball? 	can I not be mothballing?
can you not be mothballing?
can he not be mothballing?
can we not be mothballing?
can you not be mothballing?
can they not be mothballing? 	can I not have mothballed?
can you not have mothballed?
can he not have mothballed?
can we not have mothballed?
can you not have mothballed?
can they not have mothballed? 	can I not have been mothballing?
can you not have been mothballing?
can he not have been mothballing?
can we not have been mothballing?
can you not have been mothballing?
can they not have been mothballing?