must perpend
Verbo regular: perpend - perpended- perpended

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must perpend
you must perpend
he must perpend
we must perpend
you must perpend
they must perpend 	I must be perpending
you must be perpending
he must be perpending
we must be perpending
you must be perpending
they must be perpending	I must have perpended
you must have perpended
he must have perpended
we must have perpended
you must have perpended
they must have perpended	I must have been perpending
you must have been perpending
he must have been perpending
we must have been perpending
you must have been perpending
they must have been perpending	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't perpend
you mustn't perpend
he mustn't perpend
we mustn't perpend
you mustn't perpend
they mustn't perpend 	I mustn't be perpending
you mustn't be perpending
he mustn't be perpending
we mustn't be perpending
you mustn't be perpending
they mustn't be perpending	I mustn't have perpended
you mustn't have perpended
he mustn't have perpended
we mustn't have perpended
you mustn't have perpended
they mustn't have perpended	I mustn't have been perpending
you mustn't have been perpending
he mustn't have been perpending
we mustn't have been perpending
you mustn't have been perpending
they mustn't have been perpending	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I perpend?
must you perpend?
must he perpend?
must we perpend?
must you perpend?
must they perpend? 	must I be perpending?
must you be perpending?
must he be perpending?
must we be perpending?
must you be perpending?
must they be perpending? 	must I have perpended?
must you have perpended?
must he have perpended?
must we have perpended?
must you have perpended?
must they have perpended? 	must I have been perpending?
must you have been perpending?
must he have been perpending?
must we have been perpending?
must you have been perpending?
must they have been perpending? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I perpend?
mustn't you perpend?
mustn't he perpend?
mustn't we perpend?
mustn't you perpend?
mustn't they perpend? 	mustn't I be perpending?
mustn't you be perpending?
mustn't he be perpending?
mustn't we be perpending?
mustn't you be perpending?
mustn't they be perpending? 	mustn't I have perpended?
mustn't you have perpended?
mustn't he have perpended?
mustn't we have perpended?
mustn't you have perpended?
mustn't they have perpended? 	mustn't I have been perpending?
mustn't you have been perpending?
mustn't he have been perpending?
mustn't we have been perpending?
mustn't you have been perpending?
mustn't they have been perpending?