Conjugação do verbo inglês
COULD BACKTRACK

Verbo regular: backtrack - backtracked - backtracked

Afirmação

Forma simple	Forma com V-ing
I could backtrack you could backtrack he could backtrack we could backtrack you could backtrack they could backtrack	I could be backtracking you could be backtracking he could be backtracking we could be backtracking you could be backtracking they could be backtracking
Perfeito	Perfeito com V-ing
I could have backtracked you could have backtracked he could have backtracked we could have backtracked you could have backtracked they could have backtracked	I could have been backtracking you could have been backtracking he could have been backtracking we could have been backtracking you could have been backtracking they could have been backtracking

Negação

Forma simple	Forma com V-ing
I couldn't backtrack you couldn't backtrack he couldn't backtrack we couldn't backtrack you couldn't backtrack they couldn't backtrack	I couldn't be backtracking you couldn't be backtracking he couldn't be backtracking we couldn't be backtracking you couldn't be backtracking they couldn't be backtracking
Perfeito	Perfeito com V-ing
I couldn't have backtracked you couldn't have backtracked he couldn't have backtracked we couldn't have backtracked you couldn't have backtracked they couldn't have backtracked	I couldn't have been backtracking you couldn't have been backtracking he couldn't have been backtracking we couldn't have been backtracking you couldn't have been backtracking they couldn't have been backtracking

Forma interrogativa

Forma simple	Forma com V-ing
could I backtrack? could you backtrack? could he backtrack? could we backtrack? could you backtrack? could they backtrack?	could I be backtracking? could you be backtracking? could he be backtracking? could we be backtracking? could you be backtracking? could they be backtracking?
Perfeito	Perfeito com V-ing
could I have backtracked? could you have backtracked? could he have backtracked? could we have backtracked? could you have backtracked? could they have backtracked?	could I have been backtracking? could you have been backtracking? could he have been backtracking? could we have been backtracking? could you have been backtracking? could they have been backtracking?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I backtrack? couldn't you backtrack? couldn't he backtrack? couldn't we backtrack? couldn't you backtrack? couldn't they backtrack?	couldn't I be backtracking? couldn't you be backtracking? couldn't he be backtracking? couldn't we be backtracking? couldn't you be backtracking? couldn't they be backtracking?
Perfeito	Perfeito com V-ing
couldn't I have backtracked? couldn't you have backtracked? couldn't he have backtracked? couldn't we have backtracked? couldn't you have backtracked? couldn't they have backtracked?	couldn't I have been backtracking? couldn't you have been backtracking? couldn't he have been backtracking? couldn't we have been backtracking? couldn't you have been backtracking? couldn't they have been backtracking?