must merchandise
Verbo regular: merchandise - merchandised- merchandised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must merchandise
you must merchandise
he must merchandise
we must merchandise
you must merchandise
they must merchandise 	I must be merchandising
you must be merchandising
he must be merchandising
we must be merchandising
you must be merchandising
they must be merchandising	I must have merchandised
you must have merchandised
he must have merchandised
we must have merchandised
you must have merchandised
they must have merchandised	I must have been merchandising
you must have been merchandising
he must have been merchandising
we must have been merchandising
you must have been merchandising
they must have been merchandising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not merchandise
you must not merchandise
he must not merchandise
we must not merchandise
you must not merchandise
they must not merchandise 	I must not be merchandising
you must not be merchandising
he must not be merchandising
we must not be merchandising
you must not be merchandising
they must not be merchandising	I must not have merchandised
you must not have merchandised
he must not have merchandised
we must not have merchandised
you must not have merchandised
they must not have merchandised	I must not have been merchandising
you must not have been merchandising
he must not have been merchandising
we must not have been merchandising
you must not have been merchandising
they must not have been merchandising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I merchandise?
must you merchandise?
must he merchandise?
must we merchandise?
must you merchandise?
must they merchandise? 	must I be merchandising?
must you be merchandising?
must he be merchandising?
must we be merchandising?
must you be merchandising?
must they be merchandising? 	must I have merchandised?
must you have merchandised?
must he have merchandised?
must we have merchandised?
must you have merchandised?
must they have merchandised? 	must I have been merchandising?
must you have been merchandising?
must he have been merchandising?
must we have been merchandising?
must you have been merchandising?
must they have been merchandising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not merchandise?
must you not merchandise?
must he not merchandise?
must we not merchandise?
must you not merchandise?
must they not merchandise? 	must I not be merchandising?
must you not be merchandising?
must he not be merchandising?
must we not be merchandising?
must you not be merchandising?
must they not be merchandising? 	must I not have merchandised?
must you not have merchandised?
must he not have merchandised?
must we not have merchandised?
must you not have merchandised?
must they not have merchandised? 	must I not have been merchandising?
must you not have been merchandising?
must he not have been merchandising?
must we not have been merchandising?
must you not have been merchandising?
must they not have been merchandising?