English verb conjugation
CAN OVERTIGHTEN

Regular verb: overtighten - overtightened - overtightened

Affirmation

Simple form	V-ing form
I can overtighten you can overtighten she can overtighten we can overtighten you can overtighten they can overtighten	I can be overtightening you can be overtightening she can be overtightening we can be overtightening you can be overtightening they can be overtightening
Perfect	V-ing perfect
I can have overtightened you can have overtightened she can have overtightened we can have overtightened you can have overtightened they can have overtightened	I can have been overtightening you can have been overtightening she can have been overtightening we can have been overtightening you can have been overtightening they can have been overtightening

Negation

Simple form	V-ing form
I can't overtighten you can't overtighten she can't overtighten we can't overtighten you can't overtighten they can't overtighten	I can't be overtightening you can't be overtightening she can't be overtightening we can't be overtightening you can't be overtightening they can't be overtightening
Perfect	V-ing perfect
I can't have overtightened you can't have overtightened she can't have overtightened we can't have overtightened you can't have overtightened they can't have overtightened	I can't have been overtightening you can't have been overtightening she can't have been overtightening we can't have been overtightening you can't have been overtightening they can't have been overtightening

Interrogative form

Simple form	V-ing form
can I overtighten? can you overtighten? can she overtighten? can we overtighten? can you overtighten? can they overtighten?	can I be overtightening? can you be overtightening? can she be overtightening? can we be overtightening? can you be overtightening? can they be overtightening?
Perfect	V-ing perfect
can I have overtightened? can you have overtightened? can she have overtightened? can we have overtightened? can you have overtightened? can they have overtightened?	can I have been overtightening? can you have been overtightening? can she have been overtightening? can we have been overtightening? can you have been overtightening? can they have been overtightening?

Interro-negative form

Simple form	V-ing form
can't I overtighten? can't you overtighten? can't she overtighten? can't we overtighten? can't you overtighten? can't they overtighten?	can't I be overtightening? can't you be overtightening? can't she be overtightening? can't we be overtightening? can't you be overtightening? can't they be overtightening?
Perfect	V-ing perfect
can't I have overtightened? can't you have overtightened? can't she have overtightened? can't we have overtightened? can't you have overtightened? can't they have overtightened?	can't I have been overtightening? can't you have been overtightening? can't she have been overtightening? can't we have been overtightening? can't you have been overtightening? can't they have been overtightening?