can opine
Regular verb: opine - opined- opined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can opine
you can opine
she can opine
we can opine
you can opine
they can opine 	I can be opining
you can be opining
she can be opining
we can be opining
you can be opining
they can be opining	I can have opined
you can have opined
she 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
she 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 	Perfect 	V-ing perfect 	
I can't opine
you can't opine
she 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
she can't be opining
we can't be opining
you can't be opining
they can't be opining	I can't have opined
you can't have opined
she 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
she 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 	Perfect 	V-ing perfect 	
can I opine?
can you opine?
can she opine?
can we opine?
can you opine?
can they opine? 	can I be opining?
can you be opining?
can she be opining?
can we be opining?
can you be opining?
can they be opining? 	can I have opined?
can you have opined?
can she 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 she 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 	Perfect 	V-ing perfect 	
can't I opine?
can't you opine?
can't she 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 she be opining?
can't we be opining?
can't you be opining?
can't they be opining? 	can't I have opined?
can't you have opined?
can't she 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 she have been opining?
can't we have been opining?
can't you have been opining?
can't they have been opining?