must quickstep
Verbo regular: quickstep - quicksteped- quicksteped

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must quickstep
you must quickstep
he must quickstep
we must quickstep
you must quickstep
they must quickstep 	I must be quicksteping
you must be quicksteping
he must be quicksteping
we must be quicksteping
you must be quicksteping
they must be quicksteping	I must have quicksteped
you must have quicksteped
he must have quicksteped
we must have quicksteped
you must have quicksteped
they must have quicksteped	I must have been quicksteping
you must have been quicksteping
he must have been quicksteping
we must have been quicksteping
you must have been quicksteping
they must have been quicksteping	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not quickstep
you must not quickstep
he must not quickstep
we must not quickstep
you must not quickstep
they must not quickstep 	I must not be quicksteping
you must not be quicksteping
he must not be quicksteping
we must not be quicksteping
you must not be quicksteping
they must not be quicksteping	I must not have quicksteped
you must not have quicksteped
he must not have quicksteped
we must not have quicksteped
you must not have quicksteped
they must not have quicksteped	I must not have been quicksteping
you must not have been quicksteping
he must not have been quicksteping
we must not have been quicksteping
you must not have been quicksteping
they must not have been quicksteping	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I quickstep?
must you quickstep?
must he quickstep?
must we quickstep?
must you quickstep?
must they quickstep? 	must I be quicksteping?
must you be quicksteping?
must he be quicksteping?
must we be quicksteping?
must you be quicksteping?
must they be quicksteping? 	must I have quicksteped?
must you have quicksteped?
must he have quicksteped?
must we have quicksteped?
must you have quicksteped?
must they have quicksteped? 	must I have been quicksteping?
must you have been quicksteping?
must he have been quicksteping?
must we have been quicksteping?
must you have been quicksteping?
must they have been quicksteping? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not quickstep?
must you not quickstep?
must he not quickstep?
must we not quickstep?
must you not quickstep?
must they not quickstep? 	must I not be quicksteping?
must you not be quicksteping?
must he not be quicksteping?
must we not be quicksteping?
must you not be quicksteping?
must they not be quicksteping? 	must I not have quicksteped?
must you not have quicksteped?
must he not have quicksteped?
must we not have quicksteped?
must you not have quicksteped?
must they not have quicksteped? 	must I not have been quicksteping?
must you not have been quicksteping?
must he not have been quicksteping?
must we not have been quicksteping?
must you not have been quicksteping?
must they not have been quicksteping?