English verb conjugation
CAN OBSESS

Regular verb: obsess - obsessed - obsessed

Affirmation

Simple form	V-ing form
I can obsess you can obsess he can obsess we can obsess you can obsess they can obsess	I can be obsessing you can be obsessing he can be obsessing we can be obsessing you can be obsessing they can be obsessing
Perfect	V-ing perfect
I can have obsessed you can have obsessed he can have obsessed we can have obsessed you can have obsessed they can have obsessed	I can have been obsessing you can have been obsessing he can have been obsessing we can have been obsessing you can have been obsessing they can have been obsessing

Negation

Simple form	V-ing form
I cannot obsess you cannot obsess he cannot obsess we cannot obsess you cannot obsess they cannot obsess	I cannot be obsessing you cannot be obsessing he cannot be obsessing we cannot be obsessing you cannot be obsessing they cannot be obsessing
Perfect	V-ing perfect
I cannot have obsessed you cannot have obsessed he cannot have obsessed we cannot have obsessed you cannot have obsessed they cannot have obsessed	I cannot have been obsessing you cannot have been obsessing he cannot have been obsessing we cannot have been obsessing you cannot have been obsessing they cannot have been obsessing

Interrogative form

Simple form	V-ing form
can I obsess? can you obsess? can he obsess? can we obsess? can you obsess? can they obsess?	can I be obsessing? can you be obsessing? can he be obsessing? can we be obsessing? can you be obsessing? can they be obsessing?
Perfect	V-ing perfect
can I have obsessed? can you have obsessed? can he have obsessed? can we have obsessed? can you have obsessed? can they have obsessed?	can I have been obsessing? can you have been obsessing? can he have been obsessing? can we have been obsessing? can you have been obsessing? can they have been obsessing?

Interro-negative form

Simple form	V-ing form
can I not obsess? can you not obsess? can he not obsess? can we not obsess? can you not obsess? can they not obsess?	can I not be obsessing? can you not be obsessing? can he not be obsessing? can we not be obsessing? can you not be obsessing? can they not be obsessing?
Perfect	V-ing perfect
can I not have obsessed? can you not have obsessed? can he not have obsessed? can we not have obsessed? can you not have obsessed? can they not have obsessed?	can I not have been obsessing? can you not have been obsessing? can he not have been obsessing? can we not have been obsessing? can you not have been obsessing? can they not have been obsessing?