must hydrogenate
Verbo regular: hydrogenate - hydrogenated- hydrogenated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must hydrogenate
you must hydrogenate
he must hydrogenate
we must hydrogenate
you must hydrogenate
they must hydrogenate 	I must be hydrogenating
you must be hydrogenating
he must be hydrogenating
we must be hydrogenating
you must be hydrogenating
they must be hydrogenating	I must have hydrogenated
you must have hydrogenated
he must have hydrogenated
we must have hydrogenated
you must have hydrogenated
they must have hydrogenated	I must have been hydrogenating
you must have been hydrogenating
he must have been hydrogenating
we must have been hydrogenating
you must have been hydrogenating
they must have been hydrogenating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not hydrogenate
you must not hydrogenate
he must not hydrogenate
we must not hydrogenate
you must not hydrogenate
they must not hydrogenate 	I must not be hydrogenating
you must not be hydrogenating
he must not be hydrogenating
we must not be hydrogenating
you must not be hydrogenating
they must not be hydrogenating	I must not have hydrogenated
you must not have hydrogenated
he must not have hydrogenated
we must not have hydrogenated
you must not have hydrogenated
they must not have hydrogenated	I must not have been hydrogenating
you must not have been hydrogenating
he must not have been hydrogenating
we must not have been hydrogenating
you must not have been hydrogenating
they must not have been hydrogenating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I hydrogenate?
must you hydrogenate?
must he hydrogenate?
must we hydrogenate?
must you hydrogenate?
must they hydrogenate? 	must I be hydrogenating?
must you be hydrogenating?
must he be hydrogenating?
must we be hydrogenating?
must you be hydrogenating?
must they be hydrogenating? 	must I have hydrogenated?
must you have hydrogenated?
must he have hydrogenated?
must we have hydrogenated?
must you have hydrogenated?
must they have hydrogenated? 	must I have been hydrogenating?
must you have been hydrogenating?
must he have been hydrogenating?
must we have been hydrogenating?
must you have been hydrogenating?
must they have been hydrogenating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not hydrogenate?
must you not hydrogenate?
must he not hydrogenate?
must we not hydrogenate?
must you not hydrogenate?
must they not hydrogenate? 	must I not be hydrogenating?
must you not be hydrogenating?
must he not be hydrogenating?
must we not be hydrogenating?
must you not be hydrogenating?
must they not be hydrogenating? 	must I not have hydrogenated?
must you not have hydrogenated?
must he not have hydrogenated?
must we not have hydrogenated?
must you not have hydrogenated?
must they not have hydrogenated? 	must I not have been hydrogenating?
must you not have been hydrogenating?
must he not have been hydrogenating?
must we not have been hydrogenating?
must you not have been hydrogenating?
must they not have been hydrogenating?