must sulfonate
Verbo regular: sulfonate - sulfonated- sulfonated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must sulfonate
you must sulfonate
he must sulfonate
we must sulfonate
you must sulfonate
they must sulfonate 	I must be sulfonating
you must be sulfonating
he must be sulfonating
we must be sulfonating
you must be sulfonating
they must be sulfonating	I must have sulfonated
you must have sulfonated
he must have sulfonated
we must have sulfonated
you must have sulfonated
they must have sulfonated	I must have been sulfonating
you must have been sulfonating
he must have been sulfonating
we must have been sulfonating
you must have been sulfonating
they must have been sulfonating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not sulfonate
you must not sulfonate
he must not sulfonate
we must not sulfonate
you must not sulfonate
they must not sulfonate 	I must not be sulfonating
you must not be sulfonating
he must not be sulfonating
we must not be sulfonating
you must not be sulfonating
they must not be sulfonating	I must not have sulfonated
you must not have sulfonated
he must not have sulfonated
we must not have sulfonated
you must not have sulfonated
they must not have sulfonated	I must not have been sulfonating
you must not have been sulfonating
he must not have been sulfonating
we must not have been sulfonating
you must not have been sulfonating
they must not have been sulfonating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I sulfonate?
must you sulfonate?
must he sulfonate?
must we sulfonate?
must you sulfonate?
must they sulfonate? 	must I be sulfonating?
must you be sulfonating?
must he be sulfonating?
must we be sulfonating?
must you be sulfonating?
must they be sulfonating? 	must I have sulfonated?
must you have sulfonated?
must he have sulfonated?
must we have sulfonated?
must you have sulfonated?
must they have sulfonated? 	must I have been sulfonating?
must you have been sulfonating?
must he have been sulfonating?
must we have been sulfonating?
must you have been sulfonating?
must they have been sulfonating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not sulfonate?
must you not sulfonate?
must he not sulfonate?
must we not sulfonate?
must you not sulfonate?
must they not sulfonate? 	must I not be sulfonating?
must you not be sulfonating?
must he not be sulfonating?
must we not be sulfonating?
must you not be sulfonating?
must they not be sulfonating? 	must I not have sulfonated?
must you not have sulfonated?
must he not have sulfonated?
must we not have sulfonated?
must you not have sulfonated?
must they not have sulfonated? 	must I not have been sulfonating?
must you not have been sulfonating?
must he not have been sulfonating?
must we not have been sulfonating?
must you not have been sulfonating?
must they not have been sulfonating?