English verb conjugation MUST SURF

Regular verb: surf - surfed - surfed

Affirmation

Simple form

I must surf
you must surf
she must surf
we must surf
you must surf
they must surf

V-ing form

I must be surfing
you must be surfing
she must be surfing
we must be surfing
you must be surfing
they must be surfing

Perfect

I must have surfed
you must have surfed
she must have surfed
we must have surfed
you must have surfed
they must have surfed

V-ing perfect

I must have been surfing
you must have been surfing
she must have been surfing
we must have been surfing
you must have been surfing
they must have been surfing

Negation

Simple form

I must not surf
you must not surf
she must not surf
we must not surf
you must not surf
they must not surf

V-ing form

I must not be surfing
you must not be surfing
she must not be surfing
we must not be surfing
you must not be surfing
they must not be surfing

Perfect

I must not have surfed
you must not have surfed
she must not have surfed
we must not have surfed
you must not have surfed
they must not have surfed

V-ing perfect

I must not have been surfing
you must not have been surfing
she must not have been surfing
we must not have been surfing
you must not have been surfing
they must not have been surfing

Interrogative form

Simple form

must I surf?
must you surf?
must she surf?
must we surf?
must you surf?
must they surf?

V-ing form

must I be surfing?
must you be surfing?
must she be surfing?
must we be surfing?
must you be surfing?
must they be surfing?

Perfect

must I have surfed?
must you have surfed?
must she have surfed?
must we have surfed?
must you have surfed?
must they have surfed?

V-ing perfect

must I have been surfing?
must you have been surfing?
must she have been surfing?
must we have been surfing?
must you have been surfing?
must they have been surfing?

Interro-negative form

Simple form

must I not surf?
must you not surf?
must she not surf?
must we not surf?
must you not surf?
must they not surf?

V-ing form

must I not be surfing?
must you not be surfing?
must she not be surfing?
must we not be surfing?
must you not be surfing?
must they not be surfing?

Perfect

must I not have surfed?
must you not have surfed?
must she not have surfed?
must we not have surfed?
must you not have surfed?
must they not have surfed?

V-ing perfect

must I not have been surfing?
must you not have been surfing?
must she not have been surfing?
must we not have been surfing?
must you not have been surfing?
must they not have been surfing?

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