English verb conjugation MUST LAPSE

Regular verb: lapse - lapsed - lapsed

Affirmation

Simple form

I must lapse
you must lapse
he must lapse
we must lapse
you must lapse
they must lapse

V-ing form

I must be lapsing
you must be lapsing
he must be lapsing
we must be lapsing
you must be lapsing
they must be lapsing

Perfect

I must have lapsed
you must have lapsed
he must have lapsed
we must have lapsed
you must have lapsed
they must have lapsed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I lapse?
must you lapse?
must he lapse?
must we lapse?
must you lapse?
must they lapse?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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