English verb conjugation CAN PERK

Regular verb: perk - perked - perked

Affirmation

Simple form

I can perk
you can perk
she can perk
we can perk
you can perk
they can perk

V-ing form

I can be perking
you can be perking
she can be perking
we can be perking
you can be perking
they can be perking

Perfect

I can have perked
you can have perked
she can have perked
we can have perked
you can have perked
they can have perked

V-ing perfect

I can have been perking
you can have been perking
she can have been perking
we can have been perking
you can have been perking
they can have been perking

Negation

Simple form

I can't perk
you can't perk
she can't perk
we can't perk
you can't perk
they can't perk

V-ing form

I can't be perking
you can't be perking
she can't be perking
we can't be perking
you can't be perking
they can't be perking

Perfect

I can't have perked
you can't have perked
she can't have perked
we can't have perked
you can't have perked
they can't have perked

V-ing perfect

I can't have been perking
you can't have been perking
she can't have been perking
we can't have been perking
you can't have been perking
they can't have been perking

Interrogative form

Simple form

can I perk?
can you perk?
can she perk?
can we perk?
can you perk?
can they perk?

V-ing form

can I be perking?
can you be perking?
can she be perking?
can we be perking?
can you be perking?
can they be perking?

Perfect

can I have perked?
can you have perked?
can she have perked?
can we have perked?
can you have perked?
can they have perked?

V-ing perfect

can I have been perking?
can you have been perking?
can she have been perking?
can we have been perking?
can you have been perking?
can they have been perking?

Interro-negative form

Simple form

can't I perk?
can't you perk?
can't she perk?
can't we perk?
can't you perk?
can't they perk?

V-ing form

can't I be perking?
can't you be perking?
can't she be perking?
can't we be perking?
can't you be perking?
can't they be perking?

Perfect

can't I have perked?
can't you have perked?
can't she have perked?
can't we have perked?
can't you have perked?
can't they have perked?

V-ing perfect

can't I have been perking?
can't you have been perking?
can't she have been perking?
can't we have been perking?
can't you have been perking?
can't they have been perking?

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