English verb conjugation MUST ISLE

Regular verb: isle - isled - isled

Affirmation

Simple form

I must isle
you must isle
he must isle
we must isle
you must isle
they must isle

V-ing form

I must be isling
you must be isling
he must be isling
we must be isling
you must be isling
they must be isling

Perfect

I must have isled
you must have isled
he must have isled
we must have isled
you must have isled
they must have isled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I isle?
must you isle?
must he isle?
must we isle?
must you isle?
must they isle?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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