must prefertilize
Verbo regular: prefertilize - prefertilized- prefertilized

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must prefertilize
you must prefertilize
she must prefertilize
we must prefertilize
you must prefertilize
they must prefertilize 	I must be prefertilizing
you must be prefertilizing
she must be prefertilizing
we must be prefertilizing
you must be prefertilizing
they must be prefertilizing	I must have prefertilized
you must have prefertilized
she must have prefertilized
we must have prefertilized
you must have prefertilized
they must have prefertilized	I must have been prefertilizing
you must have been prefertilizing
she must have been prefertilizing
we must have been prefertilizing
you must have been prefertilizing
they must have been prefertilizing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not prefertilize
you must not prefertilize
she must not prefertilize
we must not prefertilize
you must not prefertilize
they must not prefertilize 	I must not be prefertilizing
you must not be prefertilizing
she must not be prefertilizing
we must not be prefertilizing
you must not be prefertilizing
they must not be prefertilizing	I must not have prefertilized
you must not have prefertilized
she must not have prefertilized
we must not have prefertilized
you must not have prefertilized
they must not have prefertilized	I must not have been prefertilizing
you must not have been prefertilizing
she must not have been prefertilizing
we must not have been prefertilizing
you must not have been prefertilizing
they must not have been prefertilizing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I prefertilize?
must you prefertilize?
must she prefertilize?
must we prefertilize?
must you prefertilize?
must they prefertilize? 	must I be prefertilizing?
must you be prefertilizing?
must she be prefertilizing?
must we be prefertilizing?
must you be prefertilizing?
must they be prefertilizing? 	must I have prefertilized?
must you have prefertilized?
must she have prefertilized?
must we have prefertilized?
must you have prefertilized?
must they have prefertilized? 	must I have been prefertilizing?
must you have been prefertilizing?
must she have been prefertilizing?
must we have been prefertilizing?
must you have been prefertilizing?
must they have been prefertilizing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not prefertilize?
must you not prefertilize?
must she not prefertilize?
must we not prefertilize?
must you not prefertilize?
must they not prefertilize? 	must I not be prefertilizing?
must you not be prefertilizing?
must she not be prefertilizing?
must we not be prefertilizing?
must you not be prefertilizing?
must they not be prefertilizing? 	must I not have prefertilized?
must you not have prefertilized?
must she not have prefertilized?
must we not have prefertilized?
must you not have prefertilized?
must they not have prefertilized? 	must I not have been prefertilizing?
must you not have been prefertilizing?
must she not have been prefertilizing?
must we not have been prefertilizing?
must you not have been prefertilizing?
must they not have been prefertilizing?