English verb conjugation
CAN OBSCURE

Regular verb: obscure - obscured - obscured

Affirmation

Simple form	V-ing form
I can obscure you can obscure he can obscure we can obscure you can obscure they can obscure	I can be obscuring you can be obscuring he can be obscuring we can be obscuring you can be obscuring they can be obscuring
Perfect	V-ing perfect
I can have obscured you can have obscured he can have obscured we can have obscured you can have obscured they can have obscured	I can have been obscuring you can have been obscuring he can have been obscuring we can have been obscuring you can have been obscuring they can have been obscuring

Negation

Simple form	V-ing form
I can't obscure you can't obscure he can't obscure we can't obscure you can't obscure they can't obscure	I can't be obscuring you can't be obscuring he can't be obscuring we can't be obscuring you can't be obscuring they can't be obscuring
Perfect	V-ing perfect
I can't have obscured you can't have obscured he can't have obscured we can't have obscured you can't have obscured they can't have obscured	I can't have been obscuring you can't have been obscuring he can't have been obscuring we can't have been obscuring you can't have been obscuring they can't have been obscuring

Interrogative form

Simple form	V-ing form
can I obscure? can you obscure? can he obscure? can we obscure? can you obscure? can they obscure?	can I be obscuring? can you be obscuring? can he be obscuring? can we be obscuring? can you be obscuring? can they be obscuring?
Perfect	V-ing perfect
can I have obscured? can you have obscured? can he have obscured? can we have obscured? can you have obscured? can they have obscured?	can I have been obscuring? can you have been obscuring? can he have been obscuring? can we have been obscuring? can you have been obscuring? can they have been obscuring?

Interro-negative form

Simple form	V-ing form
can't I obscure? can't you obscure? can't he obscure? can't we obscure? can't you obscure? can't they obscure?	can't I be obscuring? can't you be obscuring? can't he be obscuring? can't we be obscuring? can't you be obscuring? can't they be obscuring?
Perfect	V-ing perfect
can't I have obscured? can't you have obscured? can't he have obscured? can't we have obscured? can't you have obscured? can't they have obscured?	can't I have been obscuring? can't you have been obscuring? can't he have been obscuring? can't we have been obscuring? can't you have been obscuring? can't they have been obscuring?