English verb conjugation MUST AUTHORISE

Regular verb: authorise - authorised - authorised

Affirmation

Simple form

I must authorise
you must authorise
she must authorise
we must authorise
you must authorise
they must authorise

V-ing form

I must be authorising
you must be authorising
she must be authorising
we must be authorising
you must be authorising
they must be authorising

Perfect

I must have authorised
you must have authorised
she must have authorised
we must have authorised
you must have authorised
they must have authorised

V-ing perfect

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

Negation

Simple form

I must not authorise
you must not authorise
she must not authorise
we must not authorise
you must not authorise
they must not authorise

V-ing form

I must not be authorising
you must not be authorising
she must not be authorising
we must not be authorising
you must not be authorising
they must not be authorising

Perfect

I must not have authorised
you must not have authorised
she must not have authorised
we must not have authorised
you must not have authorised
they must not have authorised

V-ing perfect

I must not have been authorising
you must not have been authorising
she must not have been authorising
we must not have been authorising
you must not have been authorising
they must not have been authorising

Interrogative form

Simple form

must I authorise?
must you authorise?
must she authorise?
must we authorise?
must you authorise?
must they authorise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

must I not authorise?
must you not authorise?
must she not authorise?
must we not authorise?
must you not authorise?
must they not authorise?

V-ing form

must I not be authorising?
must you not be authorising?
must she not be authorising?
must we not be authorising?
must you not be authorising?
must they not be authorising?

Perfect

must I not have authorised?
must you not have authorised?
must she not have authorised?
must we not have authorised?
must you not have authorised?
must they not have authorised?

V-ing perfect

must I not have been authorising?
must you not have been authorising?
must she not have been authorising?
must we not have been authorising?
must you not have been authorising?
must they not have been authorising?

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