must flight-test
Verbo regular: flight-test - flight-tested- flight-tested

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must flight-test
you must flight-test
she must flight-test
we must flight-test
you must flight-test
they must flight-test 	I must be flight-testing
you must be flight-testing
she must be flight-testing
we must be flight-testing
you must be flight-testing
they must be flight-testing	I must have flight-tested
you must have flight-tested
she must have flight-tested
we must have flight-tested
you must have flight-tested
they must have flight-tested	I must have been flight-testing
you must have been flight-testing
she must have been flight-testing
we must have been flight-testing
you must have been flight-testing
they must have been flight-testing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not flight-test
you must not flight-test
she must not flight-test
we must not flight-test
you must not flight-test
they must not flight-test 	I must not be flight-testing
you must not be flight-testing
she must not be flight-testing
we must not be flight-testing
you must not be flight-testing
they must not be flight-testing	I must not have flight-tested
you must not have flight-tested
she must not have flight-tested
we must not have flight-tested
you must not have flight-tested
they must not have flight-tested	I must not have been flight-testing
you must not have been flight-testing
she must not have been flight-testing
we must not have been flight-testing
you must not have been flight-testing
they must not have been flight-testing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I flight-test?
must you flight-test?
must she flight-test?
must we flight-test?
must you flight-test?
must they flight-test? 	must I be flight-testing?
must you be flight-testing?
must she be flight-testing?
must we be flight-testing?
must you be flight-testing?
must they be flight-testing? 	must I have flight-tested?
must you have flight-tested?
must she have flight-tested?
must we have flight-tested?
must you have flight-tested?
must they have flight-tested? 	must I have been flight-testing?
must you have been flight-testing?
must she have been flight-testing?
must we have been flight-testing?
must you have been flight-testing?
must they have been flight-testing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not flight-test?
must you not flight-test?
must she not flight-test?
must we not flight-test?
must you not flight-test?
must they not flight-test? 	must I not be flight-testing?
must you not be flight-testing?
must she not be flight-testing?
must we not be flight-testing?
must you not be flight-testing?
must they not be flight-testing? 	must I not have flight-tested?
must you not have flight-tested?
must she not have flight-tested?
must we not have flight-tested?
must you not have flight-tested?
must they not have flight-tested? 	must I not have been flight-testing?
must you not have been flight-testing?
must she not have been flight-testing?
must we not have been flight-testing?
must you not have been flight-testing?
must they not have been flight-testing?