must opine
Verbo regular: opine - opined- opined

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must opine
you must opine
he must opine
we must opine
you must opine
they must opine 	I must be opining
you must be opining
he must be opining
we must be opining
you must be opining
they must be opining	I must have opined
you must have opined
he must have opined
we must have opined
you must have opined
they must have opined	I must have been opining
you must have been opining
he must have been opining
we must have been opining
you must have been opining
they must have been opining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not opine
you must not opine
he must not opine
we must not opine
you must not opine
they must not opine 	I must not be opining
you must not be opining
he must not be opining
we must not be opining
you must not be opining
they must not be opining	I must not have opined
you must not have opined
he must not have opined
we must not have opined
you must not have opined
they must not have opined	I must not have been opining
you must not have been opining
he must not have been opining
we must not have been opining
you must not have been opining
they must not have been opining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I opine?
must you opine?
must he opine?
must we opine?
must you opine?
must they opine? 	must I be opining?
must you be opining?
must he be opining?
must we be opining?
must you be opining?
must they be opining? 	must I have opined?
must you have opined?
must he have opined?
must we have opined?
must you have opined?
must they have opined? 	must I have been opining?
must you have been opining?
must he have been opining?
must we have been opining?
must you have been opining?
must they have been opining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not opine?
must you not opine?
must he not opine?
must we not opine?
must you not opine?
must they not opine? 	must I not be opining?
must you not be opining?
must he not be opining?
must we not be opining?
must you not be opining?
must they not be opining? 	must I not have opined?
must you not have opined?
must he not have opined?
must we not have opined?
must you not have opined?
must they not have opined? 	must I not have been opining?
must you not have been opining?
must he not have been opining?
must we not have been opining?
must you not have been opining?
must they not have been opining?