must interest
Verbo regular: interest - interested- interested

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must interest
you must interest
she must interest
we must interest
you must interest
they must interest 	I must be interesting
you must be interesting
she must be interesting
we must be interesting
you must be interesting
they must be interesting	I must have interested
you must have interested
she must have interested
we must have interested
you must have interested
they must have interested	I must have been interesting
you must have been interesting
she must have been interesting
we must have been interesting
you must have been interesting
they must have been interesting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't interest
you mustn't interest
she mustn't interest
we mustn't interest
you mustn't interest
they mustn't interest 	I mustn't be interesting
you mustn't be interesting
she mustn't be interesting
we mustn't be interesting
you mustn't be interesting
they mustn't be interesting	I mustn't have interested
you mustn't have interested
she mustn't have interested
we mustn't have interested
you mustn't have interested
they mustn't have interested	I mustn't have been interesting
you mustn't have been interesting
she mustn't have been interesting
we mustn't have been interesting
you mustn't have been interesting
they mustn't have been interesting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I interest?
must you interest?
must she interest?
must we interest?
must you interest?
must they interest? 	must I be interesting?
must you be interesting?
must she be interesting?
must we be interesting?
must you be interesting?
must they be interesting? 	must I have interested?
must you have interested?
must she have interested?
must we have interested?
must you have interested?
must they have interested? 	must I have been interesting?
must you have been interesting?
must she have been interesting?
must we have been interesting?
must you have been interesting?
must they have been interesting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I interest?
mustn't you interest?
mustn't she interest?
mustn't we interest?
mustn't you interest?
mustn't they interest? 	mustn't I be interesting?
mustn't you be interesting?
mustn't she be interesting?
mustn't we be interesting?
mustn't you be interesting?
mustn't they be interesting? 	mustn't I have interested?
mustn't you have interested?
mustn't she have interested?
mustn't we have interested?
mustn't you have interested?
mustn't they have interested? 	mustn't I have been interesting?
mustn't you have been interesting?
mustn't she have been interesting?
mustn't we have been interesting?
mustn't you have been interesting?
mustn't they have been interesting?