must fertilize
Verbo regular: fertilize - fertilized- fertilized

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must fertilize
you must fertilize
he must fertilize
we must fertilize
you must fertilize
they must fertilize 	I must be fertilizing
you must be fertilizing
he must be fertilizing
we must be fertilizing
you must be fertilizing
they must be fertilizing	I must have fertilized
you must have fertilized
he must have fertilized
we must have fertilized
you must have fertilized
they must have fertilized	I must have been fertilizing
you must have been fertilizing
he must have been fertilizing
we must have been fertilizing
you must have been fertilizing
they must have been fertilizing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not fertilize
you must not fertilize
he must not fertilize
we must not fertilize
you must not fertilize
they must not fertilize 	I must not be fertilizing
you must not be fertilizing
he must not be fertilizing
we must not be fertilizing
you must not be fertilizing
they must not be fertilizing	I must not have fertilized
you must not have fertilized
he must not have fertilized
we must not have fertilized
you must not have fertilized
they must not have fertilized	I must not have been fertilizing
you must not have been fertilizing
he must not have been fertilizing
we must not have been fertilizing
you must not have been fertilizing
they must not have been fertilizing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I fertilize?
must you fertilize?
must he fertilize?
must we fertilize?
must you fertilize?
must they fertilize? 	must I be fertilizing?
must you be fertilizing?
must he be fertilizing?
must we be fertilizing?
must you be fertilizing?
must they be fertilizing? 	must I have fertilized?
must you have fertilized?
must he have fertilized?
must we have fertilized?
must you have fertilized?
must they have fertilized? 	must I have been fertilizing?
must you have been fertilizing?
must he have been fertilizing?
must we have been fertilizing?
must you have been fertilizing?
must they have been fertilizing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not fertilize?
must you not fertilize?
must he not fertilize?
must we not fertilize?
must you not fertilize?
must they not fertilize? 	must I not be fertilizing?
must you not be fertilizing?
must he not be fertilizing?
must we not be fertilizing?
must you not be fertilizing?
must they not be fertilizing? 	must I not have fertilized?
must you not have fertilized?
must he not have fertilized?
must we not have fertilized?
must you not have fertilized?
must they not have fertilized? 	must I not have been fertilizing?
must you not have been fertilizing?
must he not have been fertilizing?
must we not have been fertilizing?
must you not have been fertilizing?
must they not have been fertilizing?