must deceive
Verbo regular: deceive - deceived- deceived

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must deceive
you must deceive
she must deceive
we must deceive
you must deceive
they must deceive 	I must be deceiving
you must be deceiving
she must be deceiving
we must be deceiving
you must be deceiving
they must be deceiving	I must have deceived
you must have deceived
she must have deceived
we must have deceived
you must have deceived
they must have deceived	I must have been deceiving
you must have been deceiving
she must have been deceiving
we must have been deceiving
you must have been deceiving
they must have been deceiving	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not deceive
you must not deceive
she must not deceive
we must not deceive
you must not deceive
they must not deceive 	I must not be deceiving
you must not be deceiving
she must not be deceiving
we must not be deceiving
you must not be deceiving
they must not be deceiving	I must not have deceived
you must not have deceived
she must not have deceived
we must not have deceived
you must not have deceived
they must not have deceived	I must not have been deceiving
you must not have been deceiving
she must not have been deceiving
we must not have been deceiving
you must not have been deceiving
they must not have been deceiving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I deceive?
must you deceive?
must she deceive?
must we deceive?
must you deceive?
must they deceive? 	must I be deceiving?
must you be deceiving?
must she be deceiving?
must we be deceiving?
must you be deceiving?
must they be deceiving? 	must I have deceived?
must you have deceived?
must she have deceived?
must we have deceived?
must you have deceived?
must they have deceived? 	must I have been deceiving?
must you have been deceiving?
must she have been deceiving?
must we have been deceiving?
must you have been deceiving?
must they have been deceiving? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not deceive?
must you not deceive?
must she not deceive?
must we not deceive?
must you not deceive?
must they not deceive? 	must I not be deceiving?
must you not be deceiving?
must she not be deceiving?
must we not be deceiving?
must you not be deceiving?
must they not be deceiving? 	must I not have deceived?
must you not have deceived?
must she not have deceived?
must we not have deceived?
must you not have deceived?
must they not have deceived? 	must I not have been deceiving?
must you not have been deceiving?
must she not have been deceiving?
must we not have been deceiving?
must you not have been deceiving?
must they not have been deceiving?