must drone
Verbo regular: drone - droned- droned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must drone
you must drone
he must drone
we must drone
you must drone
they must drone 	I must be droning
you must be droning
he must be droning
we must be droning
you must be droning
they must be droning	I must have droned
you must have droned
he must have droned
we must have droned
you must have droned
they must have droned	I must have been droning
you must have been droning
he must have been droning
we must have been droning
you must have been droning
they must have been droning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't drone
you mustn't drone
he mustn't drone
we mustn't drone
you mustn't drone
they mustn't drone 	I mustn't be droning
you mustn't be droning
he mustn't be droning
we mustn't be droning
you mustn't be droning
they mustn't be droning	I mustn't have droned
you mustn't have droned
he mustn't have droned
we mustn't have droned
you mustn't have droned
they mustn't have droned	I mustn't have been droning
you mustn't have been droning
he mustn't have been droning
we mustn't have been droning
you mustn't have been droning
they mustn't have been droning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I drone?
must you drone?
must he drone?
must we drone?
must you drone?
must they drone? 	must I be droning?
must you be droning?
must he be droning?
must we be droning?
must you be droning?
must they be droning? 	must I have droned?
must you have droned?
must he have droned?
must we have droned?
must you have droned?
must they have droned? 	must I have been droning?
must you have been droning?
must he have been droning?
must we have been droning?
must you have been droning?
must they have been droning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I drone?
mustn't you drone?
mustn't he drone?
mustn't we drone?
mustn't you drone?
mustn't they drone? 	mustn't I be droning?
mustn't you be droning?
mustn't he be droning?
mustn't we be droning?
mustn't you be droning?
mustn't they be droning? 	mustn't I have droned?
mustn't you have droned?
mustn't he have droned?
mustn't we have droned?
mustn't you have droned?
mustn't they have droned? 	mustn't I have been droning?
mustn't you have been droning?
mustn't he have been droning?
mustn't we have been droning?
mustn't you have been droning?
mustn't they have been droning?