English verb conjugation
CAN SPUTTER

Regular verb: sputter - sputtered - sputtered

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
I can't sputter you can't sputter she 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 she can't be sputtering we can't be sputtering you can't be sputtering they can't be sputtering
Perfect	V-ing perfect
I can't have sputtered you can't have sputtered she 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 she can't have been sputtering we can't have been sputtering you can't have been sputtering they can't have been sputtering

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can't I sputter? can't you sputter? can't she 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 she be sputtering? can't we be sputtering? can't you be sputtering? can't they be sputtering?
Perfect	V-ing perfect
can't I have sputtered? can't you have sputtered? can't she 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 she have been sputtering? can't we have been sputtering? can't you have been sputtering? can't they have been sputtering?