must yap yap
Verbo regular: yap yap - yap yaped- yap yaped

ón, este verbo puede no existir, se da como ejemplo la conjugación.

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must yap yap
you must yap yap
she must yap yap
we must yap yap
you must yap yap
they must yap yap 	I must be yap yaping
you must be yap yaping
she must be yap yaping
we must be yap yaping
you must be yap yaping
they must be yap yaping	I must have yap yaped
you must have yap yaped
she must have yap yaped
we must have yap yaped
you must have yap yaped
they must have yap yaped	I must have been yap yaping
you must have been yap yaping
she must have been yap yaping
we must have been yap yaping
you must have been yap yaping
they must have been yap yaping	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't yap yap
you mustn't yap yap
she mustn't yap yap
we mustn't yap yap
you mustn't yap yap
they mustn't yap yap 	I mustn't be yap yaping
you mustn't be yap yaping
she mustn't be yap yaping
we mustn't be yap yaping
you mustn't be yap yaping
they mustn't be yap yaping	I mustn't have yap yaped
you mustn't have yap yaped
she mustn't have yap yaped
we mustn't have yap yaped
you mustn't have yap yaped
they mustn't have yap yaped	I mustn't have been yap yaping
you mustn't have been yap yaping
she mustn't have been yap yaping
we mustn't have been yap yaping
you mustn't have been yap yaping
they mustn't have been yap yaping	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I yap yap?
must you yap yap?
must she yap yap?
must we yap yap?
must you yap yap?
must they yap yap? 	must I be yap yaping?
must you be yap yaping?
must she be yap yaping?
must we be yap yaping?
must you be yap yaping?
must they be yap yaping? 	must I have yap yaped?
must you have yap yaped?
must she have yap yaped?
must we have yap yaped?
must you have yap yaped?
must they have yap yaped? 	must I have been yap yaping?
must you have been yap yaping?
must she have been yap yaping?
must we have been yap yaping?
must you have been yap yaping?
must they have been yap yaping? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I yap yap?
mustn't you yap yap?
mustn't she yap yap?
mustn't we yap yap?
mustn't you yap yap?
mustn't they yap yap? 	mustn't I be yap yaping?
mustn't you be yap yaping?
mustn't she be yap yaping?
mustn't we be yap yaping?
mustn't you be yap yaping?
mustn't they be yap yaping? 	mustn't I have yap yaped?
mustn't you have yap yaped?
mustn't she have yap yaped?
mustn't we have yap yaped?
mustn't you have yap yaped?
mustn't they have yap yaped? 	mustn't I have been yap yaping?
mustn't you have been yap yaping?
mustn't she have been yap yaping?
mustn't we have been yap yaping?
mustn't you have been yap yaping?
mustn't they have been yap yaping?