English verb conjugation MUST BUR

Regular verb: bur - bured - bured

Affirmation

Simple form

I must bur
you must bur
he must bur
we must bur
you must bur
they must bur

V-ing form

I must be buring
you must be buring
he must be buring
we must be buring
you must be buring
they must be buring

Perfect

I must have bured
you must have bured
he must have bured
we must have bured
you must have bured
they must have bured

V-ing perfect

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

Negation

Simple form

I must not bur
you must not bur
he must not bur
we must not bur
you must not bur
they must not bur

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I bur?
must you bur?
must he bur?
must we bur?
must you bur?
must they bur?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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