English verb conjugation CAN LEAVEN

Regular verb: leaven - leavened - leavened

Affirmation

Simple form

I can leaven
you can leaven
he can leaven
we can leaven
you can leaven
they can leaven

V-ing form

I can be leavening
you can be leavening
he can be leavening
we can be leavening
you can be leavening
they can be leavening

Perfect

I can have leavened
you can have leavened
he can have leavened
we can have leavened
you can have leavened
they can have leavened

V-ing perfect

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

Negation

Simple form

I cannot leaven
you cannot leaven
he cannot leaven
we cannot leaven
you cannot leaven
they cannot leaven

V-ing form

I cannot be leavening
you cannot be leavening
he cannot be leavening
we cannot be leavening
you cannot be leavening
they cannot be leavening

Perfect

I cannot have leavened
you cannot have leavened
he cannot have leavened
we cannot have leavened
you cannot have leavened
they cannot have leavened

V-ing perfect

I cannot have been leavening
you cannot have been leavening
he cannot have been leavening
we cannot have been leavening
you cannot have been leavening
they cannot have been leavening

Interrogative form

Simple form

can I leaven?
can you leaven?
can he leaven?
can we leaven?
can you leaven?
can they leaven?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

can I not leaven?
can you not leaven?
can he not leaven?
can we not leaven?
can you not leaven?
can they not leaven?

V-ing form

can I not be leavening?
can you not be leavening?
can he not be leavening?
can we not be leavening?
can you not be leavening?
can they not be leavening?

Perfect

can I not have leavened?
can you not have leavened?
can he not have leavened?
can we not have leavened?
can you not have leavened?
can they not have leavened?

V-ing perfect

can I not have been leavening?
can you not have been leavening?
can he not have been leavening?
can we not have been leavening?
can you not have been leavening?
can they not have been leavening?

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