English verb conjugation
CAN OPINE

Regular verb: opine - opined - opined

Affirmation

Simple form	V-ing form
I can opine you can opine he can opine we can opine you can opine they can opine	I can be opining you can be opining he can be opining we can be opining you can be opining they can be opining
Perfect	V-ing perfect
I can have opined you can have opined he can have opined we can have opined you can have opined they can have opined	I can have been opining you can have been opining he can have been opining we can have been opining you can have been opining they can have been opining

Negation

Simple form	V-ing form
I cannot opine you cannot opine he cannot opine we cannot opine you cannot opine they cannot opine	I cannot be opining you cannot be opining he cannot be opining we cannot be opining you cannot be opining they cannot be opining
Perfect	V-ing perfect
I cannot have opined you cannot have opined he cannot have opined we cannot have opined you cannot have opined they cannot have opined	I cannot have been opining you cannot have been opining he cannot have been opining we cannot have been opining you cannot have been opining they cannot have been opining

Interrogative form

Simple form	V-ing form
can I opine? can you opine? can he opine? can we opine? can you opine? can they opine?	can I be opining? can you be opining? can he be opining? can we be opining? can you be opining? can they be opining?
Perfect	V-ing perfect
can I have opined? can you have opined? can he have opined? can we have opined? can you have opined? can they have opined?	can I have been opining? can you have been opining? can he have been opining? can we have been opining? can you have been opining? can they have been opining?

Interro-negative form

Simple form	V-ing form
can I not opine? can you not opine? can he not opine? can we not opine? can you not opine? can they not opine?	can I not be opining? can you not be opining? can he not be opining? can we not be opining? can you not be opining? can they not be opining?
Perfect	V-ing perfect
can I not have opined? can you not have opined? can he not have opined? can we not have opined? can you not have opined? can they not have opined?	can I not have been opining? can you not have been opining? can he not have been opining? can we not have been opining? can you not have been opining? can they not have been opining?