could inject
Verbo regular: inject - injected- injected

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

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't inject
you couldn't inject
she couldn't inject
we couldn't inject
you couldn't inject
they couldn't inject 	I couldn't be injecting
you couldn't be injecting
she couldn't be injecting
we couldn't be injecting
you couldn't be injecting
they couldn't be injecting	I couldn't have injected
you couldn't have injected
she couldn't have injected
we couldn't have injected
you couldn't have injected
they couldn't have injected	I couldn't have been injecting
you couldn't have been injecting
she couldn't have been injecting
we couldn't have been injecting
you couldn't have been injecting
they couldn't have been injecting	

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

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