English verb conjugation MUST BILL

Regular verb: bill - billed - billed

Affirmation

Simple form

I must bill
you must bill
he must bill
we must bill
you must bill
they must bill

V-ing form

I must be billing
you must be billing
he must be billing
we must be billing
you must be billing
they must be billing

Perfect

I must have billed
you must have billed
he must have billed
we must have billed
you must have billed
they must have billed

V-ing perfect

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

Negation

Simple form

I must not bill
you must not bill
he must not bill
we must not bill
you must not bill
they must not bill

V-ing form

I must not be billing
you must not be billing
he must not be billing
we must not be billing
you must not be billing
they must not be billing

Perfect

I must not have billed
you must not have billed
he must not have billed
we must not have billed
you must not have billed
they must not have billed

V-ing perfect

I must not have been billing
you must not have been billing
he must not have been billing
we must not have been billing
you must not have been billing
they must not have been billing

Interrogative form

Simple form

must I bill?
must you bill?
must he bill?
must we bill?
must you bill?
must they bill?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

must I not bill?
must you not bill?
must he not bill?
must we not bill?
must you not bill?
must they not bill?

V-ing form

must I not be billing?
must you not be billing?
must he not be billing?
must we not be billing?
must you not be billing?
must they not be billing?

Perfect

must I not have billed?
must you not have billed?
must he not have billed?
must we not have billed?
must you not have billed?
must they not have billed?

V-ing perfect

must I not have been billing?
must you not have been billing?
must he not have been billing?
must we not have been billing?
must you not have been billing?
must they not have been billing?

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