must interest
Verbo regular: interest - interested- interested

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must interest
you must interest
he must interest
we must interest
you must interest
they must interest 	I must be interesting
you must be interesting
he must be interesting
we must be interesting
you must be interesting
they must be interesting	I must have interested
you must have interested
he 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
he must have been interesting
we must have been interesting
you must have been interesting
they must have been interesting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not interest
you must not interest
he must not interest
we must not interest
you must not interest
they must not interest 	I must not be interesting
you must not be interesting
he must not be interesting
we must not be interesting
you must not be interesting
they must not be interesting	I must not have interested
you must not have interested
he must not have interested
we must not have interested
you must not have interested
they must not have interested	I must not have been interesting
you must not have been interesting
he must not have been interesting
we must not have been interesting
you must not have been interesting
they must not have been interesting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I interest?
must you interest?
must he interest?
must we interest?
must you interest?
must they interest? 	must I be interesting?
must you be interesting?
must he be interesting?
must we be interesting?
must you be interesting?
must they be interesting? 	must I have interested?
must you have interested?
must he 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 he have been interesting?
must we have been interesting?
must you have been interesting?
must they have been interesting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not interest?
must you not interest?
must he not interest?
must we not interest?
must you not interest?
must they not interest? 	must I not be interesting?
must you not be interesting?
must he not be interesting?
must we not be interesting?
must you not be interesting?
must they not be interesting? 	must I not have interested?
must you not have interested?
must he not have interested?
must we not have interested?
must you not have interested?
must they not have interested? 	must I not have been interesting?
must you not have been interesting?
must he not have been interesting?
must we not have been interesting?
must you not have been interesting?
must they not have been interesting?