English verb conjugation MUST KNURL

Regular verb: knurl - knurled - knurled

Affirmation

Simple form

I must knurl
you must knurl
he must knurl
we must knurl
you must knurl
they must knurl

V-ing form

I must be knurling
you must be knurling
he must be knurling
we must be knurling
you must be knurling
they must be knurling

Perfect

I must have knurled
you must have knurled
he must have knurled
we must have knurled
you must have knurled
they must have knurled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I knurl?
must you knurl?
must he knurl?
must we knurl?
must you knurl?
must they knurl?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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