English verb conjugation MUST GRUBSTAKE

Regular verb: grubstake - grubstaked - grubstaked

Affirmation

Simple form

I must grubstake
you must grubstake
he must grubstake
we must grubstake
you must grubstake
they must grubstake

V-ing form

I must be grubstaking
you must be grubstaking
he must be grubstaking
we must be grubstaking
you must be grubstaking
they must be grubstaking

Perfect

I must have grubstaked
you must have grubstaked
he must have grubstaked
we must have grubstaked
you must have grubstaked
they must have grubstaked

V-ing perfect

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

Negation

Simple form

I must not grubstake
you must not grubstake
he must not grubstake
we must not grubstake
you must not grubstake
they must not grubstake

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I grubstake?
must you grubstake?
must he grubstake?
must we grubstake?
must you grubstake?
must they grubstake?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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