English verb conjugation MUST CERTIFICATE

Regular verb: certificate - certificated - certificated

Affirmation

Simple form

I must certificate
you must certificate
he must certificate
we must certificate
you must certificate
they must certificate

V-ing form

I must be certificating
you must be certificating
he must be certificating
we must be certificating
you must be certificating
they must be certificating

Perfect

I must have certificated
you must have certificated
he must have certificated
we must have certificated
you must have certificated
they must have certificated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I certificate?
must you certificate?
must he certificate?
must we certificate?
must you certificate?
must they certificate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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