English verb conjugation MUST PREINVESTIGATE

Regular verb: preinvestigate - preinvestigated - preinvestigated

Affirmation

Simple form

I must preinvestigate
you must preinvestigate
he must preinvestigate
we must preinvestigate
you must preinvestigate
they must preinvestigate

V-ing form

I must be preinvestigating
you must be preinvestigating
he must be preinvestigating
we must be preinvestigating
you must be preinvestigating
they must be preinvestigating

Perfect

I must have preinvestigated
you must have preinvestigated
he must have preinvestigated
we must have preinvestigated
you must have preinvestigated
they must have preinvestigated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I preinvestigate?
must you preinvestigate?
must he preinvestigate?
must we preinvestigate?
must you preinvestigate?
must they preinvestigate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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