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
he must inject
we must inject
you must inject
they must inject 	I must be injecting
you must be injecting
he must be injecting
we must be injecting
you must be injecting
they must be injecting	I must have injected
you must have injected
he 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
he 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 mustn't inject
you mustn't inject
he mustn't inject
we mustn't inject
you mustn't inject
they mustn't inject 	I mustn't be injecting
you mustn't be injecting
he mustn't be injecting
we mustn't be injecting
you mustn't be injecting
they mustn't be injecting	I mustn't have injected
you mustn't have injected
he mustn't have injected
we mustn't have injected
you mustn't have injected
they mustn't have injected	I mustn't have been injecting
you mustn't have been injecting
he mustn't have been injecting
we mustn't have been injecting
you mustn't have been injecting
they mustn't have been injecting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I inject?
must you inject?
must he inject?
must we inject?
must you inject?
must they inject? 	must I be injecting?
must you be injecting?
must he be injecting?
must we be injecting?
must you be injecting?
must they be injecting? 	must I have injected?
must you have injected?
must he 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 he 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 	
mustn't I inject?
mustn't you inject?
mustn't he inject?
mustn't we inject?
mustn't you inject?
mustn't they inject? 	mustn't I be injecting?
mustn't you be injecting?
mustn't he be injecting?
mustn't we be injecting?
mustn't you be injecting?
mustn't they be injecting? 	mustn't I have injected?
mustn't you have injected?
mustn't he have injected?
mustn't we have injected?
mustn't you have injected?
mustn't they have injected? 	mustn't I have been injecting?
mustn't you have been injecting?
mustn't he have been injecting?
mustn't we have been injecting?
mustn't you have been injecting?
mustn't they have been injecting?