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
he can sputter
we can sputter
you can sputter
they can sputter 	I can be sputtering
you can be sputtering
he can be sputtering
we can be sputtering
you can be sputtering
they can be sputtering	I can have sputtered
you can have sputtered
he 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
he 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 can't sputter
you can't sputter
he can't sputter
we can't sputter
you can't sputter
they can't sputter 	I can't be sputtering
you can't be sputtering
he can't be sputtering
we can't be sputtering
you can't be sputtering
they can't be sputtering	I can't have sputtered
you can't have sputtered
he can't have sputtered
we can't have sputtered
you can't have sputtered
they can't have sputtered	I can't have been sputtering
you can't have been sputtering
he can't have been sputtering
we can't have been sputtering
you can't have been sputtering
they can't have been sputtering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I sputter?
can you sputter?
can he sputter?
can we sputter?
can you sputter?
can they sputter? 	can I be sputtering?
can you be sputtering?
can he be sputtering?
can we be sputtering?
can you be sputtering?
can they be sputtering? 	can I have sputtered?
can you have sputtered?
can he 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 he 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't I sputter?
can't you sputter?
can't he sputter?
can't we sputter?
can't you sputter?
can't they sputter? 	can't I be sputtering?
can't you be sputtering?
can't he be sputtering?
can't we be sputtering?
can't you be sputtering?
can't they be sputtering? 	can't I have sputtered?
can't you have sputtered?
can't he have sputtered?
can't we have sputtered?
can't you have sputtered?
can't they have sputtered? 	can't I have been sputtering?
can't you have been sputtering?
can't he have been sputtering?
can't we have been sputtering?
can't you have been sputtering?
can't they have been sputtering?