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 can't backtrack you can't backtrack he can't backtrack we can't backtrack you can't backtrack they can't backtrack	I can't be backtracking you can't be backtracking he can't be backtracking we can't be backtracking you can't be backtracking they can't be backtracking
Perfect	V-ing perfect
I can't have backtracked you can't have backtracked he can't have backtracked we can't have backtracked you can't have backtracked they can't have backtracked	I can't have been backtracking you can't have been backtracking he can't have been backtracking we can't have been backtracking you can't have been backtracking they can't 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't I backtrack? can't you backtrack? can't he backtrack? can't we backtrack? can't you backtrack? can't they backtrack?	can't I be backtracking? can't you be backtracking? can't he be backtracking? can't we be backtracking? can't you be backtracking? can't they be backtracking?
Perfect	V-ing perfect
can't I have backtracked? can't you have backtracked? can't he have backtracked? can't we have backtracked? can't you have backtracked? can't they have backtracked?	can't I have been backtracking? can't you have been backtracking? can't he have been backtracking? can't we have been backtracking? can't you have been backtracking? can't they have been backtracking?