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 can't opine you can't opine he can't opine we can't opine you can't opine they can't opine	I can't be opining you can't be opining he can't be opining we can't be opining you can't be opining they can't be opining
Perfect	V-ing perfect
I can't have opined you can't have opined he can't have opined we can't have opined you can't have opined they can't have opined	I can't have been opining you can't have been opining he can't have been opining we can't have been opining you can't have been opining they can't 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't I opine? can't you opine? can't he opine? can't we opine? can't you opine? can't they opine?	can't I be opining? can't you be opining? can't he be opining? can't we be opining? can't you be opining? can't they be opining?
Perfect	V-ing perfect
can't I have opined? can't you have opined? can't he have opined? can't we have opined? can't you have opined? can't they have opined?	can't I have been opining? can't you have been opining? can't he have been opining? can't we have been opining? can't you have been opining? can't they have been opining?