English verb conjugation
CAN SMARTEN

Regular verb: smarten - smartened - smartened

Affirmation

Simple form	V-ing form
I can smarten you can smarten she can smarten we can smarten you can smarten they can smarten	I can be smartening you can be smartening she can be smartening we can be smartening you can be smartening they can be smartening
Perfect	V-ing perfect
I can have smartened you can have smartened she can have smartened we can have smartened you can have smartened they can have smartened	I can have been smartening you can have been smartening she can have been smartening we can have been smartening you can have been smartening they can have been smartening

Negation

Simple form	V-ing form
I cannot smarten you cannot smarten she cannot smarten we cannot smarten you cannot smarten they cannot smarten	I cannot be smartening you cannot be smartening she cannot be smartening we cannot be smartening you cannot be smartening they cannot be smartening
Perfect	V-ing perfect
I cannot have smartened you cannot have smartened she cannot have smartened we cannot have smartened you cannot have smartened they cannot have smartened	I cannot have been smartening you cannot have been smartening she cannot have been smartening we cannot have been smartening you cannot have been smartening they cannot have been smartening

Interrogative form

Simple form	V-ing form
can I smarten? can you smarten? can she smarten? can we smarten? can you smarten? can they smarten?	can I be smartening? can you be smartening? can she be smartening? can we be smartening? can you be smartening? can they be smartening?
Perfect	V-ing perfect
can I have smartened? can you have smartened? can she have smartened? can we have smartened? can you have smartened? can they have smartened?	can I have been smartening? can you have been smartening? can she have been smartening? can we have been smartening? can you have been smartening? can they have been smartening?

Interro-negative form

Simple form	V-ing form
can I not smarten? can you not smarten? can she not smarten? can we not smarten? can you not smarten? can they not smarten?	can I not be smartening? can you not be smartening? can she not be smartening? can we not be smartening? can you not be smartening? can they not be smartening?
Perfect	V-ing perfect
can I not have smartened? can you not have smartened? can she not have smartened? can we not have smartened? can you not have smartened? can they not have smartened?	can I not have been smartening? can you not have been smartening? can she not have been smartening? can we not have been smartening? can you not have been smartening? can they not have been smartening?