English verb conjugation MUST TUBE

Regular verb: tube - tubed - tubed

Affirmation

Simple form

I must tube
you must tube
he must tube
we must tube
you must tube
they must tube

V-ing form

I must be tubing
you must be tubing
he must be tubing
we must be tubing
you must be tubing
they must be tubing

Perfect

I must have tubed
you must have tubed
he must have tubed
we must have tubed
you must have tubed
they must have tubed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I tube?
must you tube?
must he tube?
must we tube?
must you tube?
must they tube?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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