English verb conjugation MUST OBSESS

Regular verb: obsess - obsessed - obsessed

Affirmation

Simple form

I must obsess
you must obsess
he must obsess
we must obsess
you must obsess
they must obsess

V-ing form

I must be obsessing
you must be obsessing
he must be obsessing
we must be obsessing
you must be obsessing
they must be obsessing

Perfect

I must have obsessed
you must have obsessed
he must have obsessed
we must have obsessed
you must have obsessed
they must have obsessed

V-ing perfect

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

Negation

Simple form

I must not obsess
you must not obsess
he must not obsess
we must not obsess
you must not obsess
they must not obsess

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I obsess?
must you obsess?
must he obsess?
must we obsess?
must you obsess?
must they obsess?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Page top