English verb conjugation MUST LEISTER

Regular verb: leister - leistered - leistered

Affirmation

Simple form

I must leister
you must leister
she must leister
we must leister
you must leister
they must leister

V-ing form

I must be leistering
you must be leistering
she must be leistering
we must be leistering
you must be leistering
they must be leistering

Perfect

I must have leistered
you must have leistered
she must have leistered
we must have leistered
you must have leistered
they must have leistered

V-ing perfect

I must have been leistering
you must have been leistering
she must have been leistering
we must have been leistering
you must have been leistering
they must have been leistering

Negation

Simple form

I mustn't leister
you mustn't leister
she mustn't leister
we mustn't leister
you mustn't leister
they mustn't leister

V-ing form

I mustn't be leistering
you mustn't be leistering
she mustn't be leistering
we mustn't be leistering
you mustn't be leistering
they mustn't be leistering

Perfect

I mustn't have leistered
you mustn't have leistered
she mustn't have leistered
we mustn't have leistered
you mustn't have leistered
they mustn't have leistered

V-ing perfect

I mustn't have been leistering
you mustn't have been leistering
she mustn't have been leistering
we mustn't have been leistering
you mustn't have been leistering
they mustn't have been leistering

Interrogative form

Simple form

must I leister?
must you leister?
must she leister?
must we leister?
must you leister?
must they leister?

V-ing form

must I be leistering?
must you be leistering?
must she be leistering?
must we be leistering?
must you be leistering?
must they be leistering?

Perfect

must I have leistered?
must you have leistered?
must she have leistered?
must we have leistered?
must you have leistered?
must they have leistered?

V-ing perfect

must I have been leistering?
must you have been leistering?
must she have been leistering?
must we have been leistering?
must you have been leistering?
must they have been leistering?

Interro-negative form

Simple form

mustn't I leister?
mustn't you leister?
mustn't she leister?
mustn't we leister?
mustn't you leister?
mustn't they leister?

V-ing form

mustn't I be leistering?
mustn't you be leistering?
mustn't she be leistering?
mustn't we be leistering?
mustn't you be leistering?
mustn't they be leistering?

Perfect

mustn't I have leistered?
mustn't you have leistered?
mustn't she have leistered?
mustn't we have leistered?
mustn't you have leistered?
mustn't they have leistered?

V-ing perfect

mustn't I have been leistering?
mustn't you have been leistering?
mustn't she have been leistering?
mustn't we have been leistering?
mustn't you have been leistering?
mustn't they have been leistering?

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