English verb conjugation MUST BIRCH

Regular verb: birch - birched - birched

Affirmation

Simple form

I must birch
you must birch
he must birch
we must birch
you must birch
they must birch

V-ing form

I must be birching
you must be birching
he must be birching
we must be birching
you must be birching
they must be birching

Perfect

I must have birched
you must have birched
he must have birched
we must have birched
you must have birched
they must have birched

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I birch?
must you birch?
must he birch?
must we birch?
must you birch?
must they birch?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Page top