English verb conjugation
CAN BACKTRACK

Regular verb: backtrack - backtracked - backtracked

Affirmation

Simple form	V-ing form
I can backtrack you can backtrack he can backtrack we can backtrack you can backtrack they can backtrack	I can be backtracking you can be backtracking he can be backtracking we can be backtracking you can be backtracking they can be backtracking
Perfect	V-ing perfect
I can have backtracked you can have backtracked he can have backtracked we can have backtracked you can have backtracked they can have backtracked	I can have been backtracking you can have been backtracking he can have been backtracking we can have been backtracking you can have been backtracking they can have been backtracking

Negation

Simple form	V-ing form
I cannot backtrack you cannot backtrack he cannot backtrack we cannot backtrack you cannot backtrack they cannot backtrack	I cannot be backtracking you cannot be backtracking he cannot be backtracking we cannot be backtracking you cannot be backtracking they cannot be backtracking
Perfect	V-ing perfect
I cannot have backtracked you cannot have backtracked he cannot have backtracked we cannot have backtracked you cannot have backtracked they cannot have backtracked	I cannot have been backtracking you cannot have been backtracking he cannot have been backtracking we cannot have been backtracking you cannot have been backtracking they cannot have been backtracking

Interrogative form

Simple form	V-ing form
can I backtrack? can you backtrack? can he backtrack? can we backtrack? can you backtrack? can they backtrack?	can I be backtracking? can you be backtracking? can he be backtracking? can we be backtracking? can you be backtracking? can they be backtracking?
Perfect	V-ing perfect
can I have backtracked? can you have backtracked? can he have backtracked? can we have backtracked? can you have backtracked? can they have backtracked?	can I have been backtracking? can you have been backtracking? can he have been backtracking? can we have been backtracking? can you have been backtracking? can they have been backtracking?

Interro-negative form

Simple form	V-ing form
can I not backtrack? can you not backtrack? can he not backtrack? can we not backtrack? can you not backtrack? can they not backtrack?	can I not be backtracking? can you not be backtracking? can he not be backtracking? can we not be backtracking? can you not be backtracking? can they not be backtracking?
Perfect	V-ing perfect
can I not have backtracked? can you not have backtracked? can he not have backtracked? can we not have backtracked? can you not have backtracked? can they not have backtracked?	can I not have been backtracking? can you not have been backtracking? can he not have been backtracking? can we not have been backtracking? can you not have been backtracking? can they not have been backtracking?