English verb conjugation
CAN PUTTER

Regular verb: putter - puttered - puttered

Affirmation

Simple form	V-ing form
I can putter you can putter he can putter we can putter you can putter they can putter	I can be puttering you can be puttering he can be puttering we can be puttering you can be puttering they can be puttering
Perfect	V-ing perfect
I can have puttered you can have puttered he can have puttered we can have puttered you can have puttered they can have puttered	I can have been puttering you can have been puttering he can have been puttering we can have been puttering you can have been puttering they can have been puttering

Negation

Simple form	V-ing form
I can't putter you can't putter he can't putter we can't putter you can't putter they can't putter	I can't be puttering you can't be puttering he can't be puttering we can't be puttering you can't be puttering they can't be puttering
Perfect	V-ing perfect
I can't have puttered you can't have puttered he can't have puttered we can't have puttered you can't have puttered they can't have puttered	I can't have been puttering you can't have been puttering he can't have been puttering we can't have been puttering you can't have been puttering they can't have been puttering

Interrogative form

Simple form	V-ing form
can I putter? can you putter? can he putter? can we putter? can you putter? can they putter?	can I be puttering? can you be puttering? can he be puttering? can we be puttering? can you be puttering? can they be puttering?
Perfect	V-ing perfect
can I have puttered? can you have puttered? can he have puttered? can we have puttered? can you have puttered? can they have puttered?	can I have been puttering? can you have been puttering? can he have been puttering? can we have been puttering? can you have been puttering? can they have been puttering?

Interro-negative form

Simple form	V-ing form
can't I putter? can't you putter? can't he putter? can't we putter? can't you putter? can't they putter?	can't I be puttering? can't you be puttering? can't he be puttering? can't we be puttering? can't you be puttering? can't they be puttering?
Perfect	V-ing perfect
can't I have puttered? can't you have puttered? can't he have puttered? can't we have puttered? can't you have puttered? can't they have puttered?	can't I have been puttering? can't you have been puttering? can't he have been puttering? can't we have been puttering? can't you have been puttering? can't they have been puttering?