English verb conjugation CAN PUFF

Regular verb: puff - puffed - puffed

Affirmation

Simple form

I can puff
you can puff
he can puff
we can puff
you can puff
they can puff

V-ing form

I can be puffing
you can be puffing
he can be puffing
we can be puffing
you can be puffing
they can be puffing

Perfect

I can have puffed
you can have puffed
he can have puffed
we can have puffed
you can have puffed
they can have puffed

V-ing perfect

I can have been puffing
you can have been puffing
he can have been puffing
we can have been puffing
you can have been puffing
they can have been puffing

Negation

Simple form

I can't puff
you can't puff
he can't puff
we can't puff
you can't puff
they can't puff

V-ing form

I can't be puffing
you can't be puffing
he can't be puffing
we can't be puffing
you can't be puffing
they can't be puffing

Perfect

I can't have puffed
you can't have puffed
he can't have puffed
we can't have puffed
you can't have puffed
they can't have puffed

V-ing perfect

I can't have been puffing
you can't have been puffing
he can't have been puffing
we can't have been puffing
you can't have been puffing
they can't have been puffing

Interrogative form

Simple form

can I puff?
can you puff?
can he puff?
can we puff?
can you puff?
can they puff?

V-ing form

can I be puffing?
can you be puffing?
can he be puffing?
can we be puffing?
can you be puffing?
can they be puffing?

Perfect

can I have puffed?
can you have puffed?
can he have puffed?
can we have puffed?
can you have puffed?
can they have puffed?

V-ing perfect

can I have been puffing?
can you have been puffing?
can he have been puffing?
can we have been puffing?
can you have been puffing?
can they have been puffing?

Interro-negative form

Simple form

can't I puff?
can't you puff?
can't he puff?
can't we puff?
can't you puff?
can't they puff?

V-ing form

can't I be puffing?
can't you be puffing?
can't he be puffing?
can't we be puffing?
can't you be puffing?
can't they be puffing?

Perfect

can't I have puffed?
can't you have puffed?
can't he have puffed?
can't we have puffed?
can't you have puffed?
can't they have puffed?

V-ing perfect

can't I have been puffing?
can't you have been puffing?
can't he have been puffing?
can't we have been puffing?
can't you have been puffing?
can't they have been puffing?

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