English verb conjugation CAN QUICKEN

Regular verb: quicken - quickened - quickened

Affirmation

Simple form

I can quicken
you can quicken
he can quicken
we can quicken
you can quicken
they can quicken

V-ing form

I can be quickening
you can be quickening
he can be quickening
we can be quickening
you can be quickening
they can be quickening

Perfect

I can have quickened
you can have quickened
he can have quickened
we can have quickened
you can have quickened
they can have quickened

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

can I quicken?
can you quicken?
can he quicken?
can we quicken?
can you quicken?
can they quicken?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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