can sputter
Verbo regular: sputter - sputtered- sputtered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can sputter
you can sputter
she can sputter
we can sputter
you can sputter
they can sputter 	I can be sputtering
you can be sputtering
she can be sputtering
we can be sputtering
you can be sputtering
they can be sputtering	I can have sputtered
you can have sputtered
she can have sputtered
we can have sputtered
you can have sputtered
they can have sputtered	I can have been sputtering
you can have been sputtering
she can have been sputtering
we can have been sputtering
you can have been sputtering
they can have been sputtering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot sputter
you cannot sputter
she cannot sputter
we cannot sputter
you cannot sputter
they cannot sputter 	I cannot be sputtering
you cannot be sputtering
she cannot be sputtering
we cannot be sputtering
you cannot be sputtering
they cannot be sputtering	I cannot have sputtered
you cannot have sputtered
she cannot have sputtered
we cannot have sputtered
you cannot have sputtered
they cannot have sputtered	I cannot have been sputtering
you cannot have been sputtering
she cannot have been sputtering
we cannot have been sputtering
you cannot have been sputtering
they cannot have been sputtering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I sputter?
can you sputter?
can she sputter?
can we sputter?
can you sputter?
can they sputter? 	can I be sputtering?
can you be sputtering?
can she be sputtering?
can we be sputtering?
can you be sputtering?
can they be sputtering? 	can I have sputtered?
can you have sputtered?
can she have sputtered?
can we have sputtered?
can you have sputtered?
can they have sputtered? 	can I have been sputtering?
can you have been sputtering?
can she have been sputtering?
can we have been sputtering?
can you have been sputtering?
can they have been sputtering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not sputter?
can you not sputter?
can she not sputter?
can we not sputter?
can you not sputter?
can they not sputter? 	can I not be sputtering?
can you not be sputtering?
can she not be sputtering?
can we not be sputtering?
can you not be sputtering?
can they not be sputtering? 	can I not have sputtered?
can you not have sputtered?
can she not have sputtered?
can we not have sputtered?
can you not have sputtered?
can they not have sputtered? 	can I not have been sputtering?
can you not have been sputtering?
can she not have been sputtering?
can we not have been sputtering?
can you not have been sputtering?
can they not have been sputtering?