English verb conjugation MUST PRECAUTION

Regular verb: precaution - precautioned - precautioned

Affirmation

Simple form

I must precaution
you must precaution
he must precaution
we must precaution
you must precaution
they must precaution

V-ing form

I must be precautioning
you must be precautioning
he must be precautioning
we must be precautioning
you must be precautioning
they must be precautioning

Perfect

I must have precautioned
you must have precautioned
he must have precautioned
we must have precautioned
you must have precautioned
they must have precautioned

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I precaution?
must you precaution?
must he precaution?
must we precaution?
must you precaution?
must they precaution?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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