English verb conjugation MUST GRIN

Regular verb: grin - grinned - grinned

Affirmation

Simple form

I must grin
you must grin
he must grin
we must grin
you must grin
they must grin

V-ing form

I must be grinning
you must be grinning
he must be grinning
we must be grinning
you must be grinning
they must be grinning

Perfect

I must have grinned
you must have grinned
he must have grinned
we must have grinned
you must have grinned
they must have grinned

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I grin?
must you grin?
must he grin?
must we grin?
must you grin?
must they grin?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Page top