must contrive
Verbo regular: contrive - contrived- contrived

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must contrive
you must contrive
she must contrive
we must contrive
you must contrive
they must contrive 	I must be contriving
you must be contriving
she must be contriving
we must be contriving
you must be contriving
they must be contriving	I must have contrived
you must have contrived
she must have contrived
we must have contrived
you must have contrived
they must have contrived	I must have been contriving
you must have been contriving
she must have been contriving
we must have been contriving
you must have been contriving
they must have been contriving	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not contrive
you must not contrive
she must not contrive
we must not contrive
you must not contrive
they must not contrive 	I must not be contriving
you must not be contriving
she must not be contriving
we must not be contriving
you must not be contriving
they must not be contriving	I must not have contrived
you must not have contrived
she must not have contrived
we must not have contrived
you must not have contrived
they must not have contrived	I must not have been contriving
you must not have been contriving
she must not have been contriving
we must not have been contriving
you must not have been contriving
they must not have been contriving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I contrive?
must you contrive?
must she contrive?
must we contrive?
must you contrive?
must they contrive? 	must I be contriving?
must you be contriving?
must she be contriving?
must we be contriving?
must you be contriving?
must they be contriving? 	must I have contrived?
must you have contrived?
must she have contrived?
must we have contrived?
must you have contrived?
must they have contrived? 	must I have been contriving?
must you have been contriving?
must she have been contriving?
must we have been contriving?
must you have been contriving?
must they have been contriving? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not contrive?
must you not contrive?
must she not contrive?
must we not contrive?
must you not contrive?
must they not contrive? 	must I not be contriving?
must you not be contriving?
must she not be contriving?
must we not be contriving?
must you not be contriving?
must they not be contriving? 	must I not have contrived?
must you not have contrived?
must she not have contrived?
must we not have contrived?
must you not have contrived?
must they not have contrived? 	must I not have been contriving?
must you not have been contriving?
must she not have been contriving?
must we not have been contriving?
must you not have been contriving?
must they not have been contriving?