English verb conjugation MUST UNDERPROP

Regular verb: underprop - underproped - underproped

Affirmation

Simple form

I must underprop
you must underprop
he must underprop
we must underprop
you must underprop
they must underprop

V-ing form

I must be underproping
you must be underproping
he must be underproping
we must be underproping
you must be underproping
they must be underproping

Perfect

I must have underproped
you must have underproped
he must have underproped
we must have underproped
you must have underproped
they must have underproped

V-ing perfect

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

Negation

Simple form

I must not underprop
you must not underprop
he must not underprop
we must not underprop
you must not underprop
they must not underprop

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I underprop?
must you underprop?
must he underprop?
must we underprop?
must you underprop?
must they underprop?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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