English verb conjugation
CAN SPUTTER

Regular verb: sputter - sputtered - sputtered

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
I cannot sputter you cannot sputter he cannot sputter we cannot sputter you cannot sputter they cannot sputter	I cannot be sputtering you cannot be sputtering he cannot be sputtering we cannot be sputtering you cannot be sputtering they cannot be sputtering
Perfect	V-ing perfect
I cannot have sputtered you cannot have sputtered he 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 he cannot have been sputtering we cannot have been sputtering you cannot have been sputtering they cannot have been sputtering

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
can I not sputter? can you not sputter? can he 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 he not be sputtering? can we not be sputtering? can you not be sputtering? can they not be sputtering?
Perfect	V-ing perfect
can I not have sputtered? can you not have sputtered? can he 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 he not have been sputtering? can we not have been sputtering? can you not have been sputtering? can they not have been sputtering?