must inject
Verbo regular: inject - injected- injected

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must inject
you must inject
she must inject
we must inject
you must inject
they must inject 	I must be injecting
you must be injecting
she must be injecting
we must be injecting
you must be injecting
they must be injecting	I must have injected
you must have injected
she must have injected
we must have injected
you must have injected
they must have injected	I must have been injecting
you must have been injecting
she must have been injecting
we must have been injecting
you must have been injecting
they must have been injecting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not inject
you must not inject
she must not inject
we must not inject
you must not inject
they must not inject 	I must not be injecting
you must not be injecting
she must not be injecting
we must not be injecting
you must not be injecting
they must not be injecting	I must not have injected
you must not have injected
she must not have injected
we must not have injected
you must not have injected
they must not have injected	I must not have been injecting
you must not have been injecting
she must not have been injecting
we must not have been injecting
you must not have been injecting
they must not have been injecting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I inject?
must you inject?
must she inject?
must we inject?
must you inject?
must they inject? 	must I be injecting?
must you be injecting?
must she be injecting?
must we be injecting?
must you be injecting?
must they be injecting? 	must I have injected?
must you have injected?
must she have injected?
must we have injected?
must you have injected?
must they have injected? 	must I have been injecting?
must you have been injecting?
must she have been injecting?
must we have been injecting?
must you have been injecting?
must they have been injecting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not inject?
must you not inject?
must she not inject?
must we not inject?
must you not inject?
must they not inject? 	must I not be injecting?
must you not be injecting?
must she not be injecting?
must we not be injecting?
must you not be injecting?
must they not be injecting? 	must I not have injected?
must you not have injected?
must she not have injected?
must we not have injected?
must you not have injected?
must they not have injected? 	must I not have been injecting?
must you not have been injecting?
must she not have been injecting?
must we not have been injecting?
must you not have been injecting?
must they not have been injecting?