English verb conjugation
CAN OBSESS

Regular verb: obsess - obsessed - obsessed

Affirmation

Simple form	V-ing form
I can obsess you can obsess she can obsess we can obsess you can obsess they can obsess	I can be obsessing you can be obsessing she 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 she 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 she 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 can't obsess you can't obsess she can't obsess we can't obsess you can't obsess they can't obsess	I can't be obsessing you can't be obsessing she can't be obsessing we can't be obsessing you can't be obsessing they can't be obsessing
Perfect	V-ing perfect
I can't have obsessed you can't have obsessed she can't have obsessed we can't have obsessed you can't have obsessed they can't have obsessed	I can't have been obsessing you can't have been obsessing she can't have been obsessing we can't have been obsessing you can't have been obsessing they can't have been obsessing

Interrogative form

Simple form	V-ing form
can I obsess? can you obsess? can she obsess? can we obsess? can you obsess? can they obsess?	can I be obsessing? can you be obsessing? can she 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 she 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 she 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't I obsess? can't you obsess? can't she obsess? can't we obsess? can't you obsess? can't they obsess?	can't I be obsessing? can't you be obsessing? can't she be obsessing? can't we be obsessing? can't you be obsessing? can't they be obsessing?
Perfect	V-ing perfect
can't I have obsessed? can't you have obsessed? can't she have obsessed? can't we have obsessed? can't you have obsessed? can't they have obsessed?	can't I have been obsessing? can't you have been obsessing? can't she have been obsessing? can't we have been obsessing? can't you have been obsessing? can't they have been obsessing?