English verb conjugation MUST PERK

Regular verb: perk - perked - perked

Affirmation

Simple form

I must perk
you must perk
he must perk
we must perk
you must perk
they must perk

V-ing form

I must be perking
you must be perking
he must be perking
we must be perking
you must be perking
they must be perking

Perfect

I must have perked
you must have perked
he must have perked
we must have perked
you must have perked
they must have perked

V-ing perfect

I must have been perking
you must have been perking
he must have been perking
we must have been perking
you must have been perking
they must have been perking

Negation

Simple form

I mustn't perk
you mustn't perk
he mustn't perk
we mustn't perk
you mustn't perk
they mustn't perk

V-ing form

I mustn't be perking
you mustn't be perking
he mustn't be perking
we mustn't be perking
you mustn't be perking
they mustn't be perking

Perfect

I mustn't have perked
you mustn't have perked
he mustn't have perked
we mustn't have perked
you mustn't have perked
they mustn't have perked

V-ing perfect

I mustn't have been perking
you mustn't have been perking
he mustn't have been perking
we mustn't have been perking
you mustn't have been perking
they mustn't have been perking

Interrogative form

Simple form

must I perk?
must you perk?
must he perk?
must we perk?
must you perk?
must they perk?

V-ing form

must I be perking?
must you be perking?
must he be perking?
must we be perking?
must you be perking?
must they be perking?

Perfect

must I have perked?
must you have perked?
must he have perked?
must we have perked?
must you have perked?
must they have perked?

V-ing perfect

must I have been perking?
must you have been perking?
must he have been perking?
must we have been perking?
must you have been perking?
must they have been perking?

Interro-negative form

Simple form

mustn't I perk?
mustn't you perk?
mustn't he perk?
mustn't we perk?
mustn't you perk?
mustn't they perk?

V-ing form

mustn't I be perking?
mustn't you be perking?
mustn't he be perking?
mustn't we be perking?
mustn't you be perking?
mustn't they be perking?

Perfect

mustn't I have perked?
mustn't you have perked?
mustn't he have perked?
mustn't we have perked?
mustn't you have perked?
mustn't they have perked?

V-ing perfect

mustn't I have been perking?
mustn't you have been perking?
mustn't he have been perking?
mustn't we have been perking?
mustn't you have been perking?
mustn't they have been perking?

Page top