must prepack
Verbo regular: prepack - prepacked- prepacked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must prepack
you must prepack
she must prepack
we must prepack
you must prepack
they must prepack 	I must be prepacking
you must be prepacking
she must be prepacking
we must be prepacking
you must be prepacking
they must be prepacking	I must have prepacked
you must have prepacked
she must have prepacked
we must have prepacked
you must have prepacked
they must have prepacked	I must have been prepacking
you must have been prepacking
she must have been prepacking
we must have been prepacking
you must have been prepacking
they must have been prepacking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not prepack
you must not prepack
she must not prepack
we must not prepack
you must not prepack
they must not prepack 	I must not be prepacking
you must not be prepacking
she must not be prepacking
we must not be prepacking
you must not be prepacking
they must not be prepacking	I must not have prepacked
you must not have prepacked
she must not have prepacked
we must not have prepacked
you must not have prepacked
they must not have prepacked	I must not have been prepacking
you must not have been prepacking
she must not have been prepacking
we must not have been prepacking
you must not have been prepacking
they must not have been prepacking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I prepack?
must you prepack?
must she prepack?
must we prepack?
must you prepack?
must they prepack? 	must I be prepacking?
must you be prepacking?
must she be prepacking?
must we be prepacking?
must you be prepacking?
must they be prepacking? 	must I have prepacked?
must you have prepacked?
must she have prepacked?
must we have prepacked?
must you have prepacked?
must they have prepacked? 	must I have been prepacking?
must you have been prepacking?
must she have been prepacking?
must we have been prepacking?
must you have been prepacking?
must they have been prepacking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not prepack?
must you not prepack?
must she not prepack?
must we not prepack?
must you not prepack?
must they not prepack? 	must I not be prepacking?
must you not be prepacking?
must she not be prepacking?
must we not be prepacking?
must you not be prepacking?
must they not be prepacking? 	must I not have prepacked?
must you not have prepacked?
must she not have prepacked?
must we not have prepacked?
must you not have prepacked?
must they not have prepacked? 	must I not have been prepacking?
must you not have been prepacking?
must she not have been prepacking?
must we not have been prepacking?
must you not have been prepacking?
must they not have been prepacking?