None of them is natural.
I think you are trying to say that a lie is (always) a lie even if it is a white lie.

Student or Learner
I think my sentence "I think lie is lie regardless white it is or not" is unnatural. Can I change it into
1. "I think a lie is a lie regardless (whether) it is white or not."
2. "Lie is a lie white or not."
None of them is natural.
I think you are trying to say that a lie is (always) a lie even if it is a white lie.
Typoman - writer of rongs
This expresses the idea with word order similar to yours: A lie is a lie, "white" or not.
I am not a teacher.
The quotation marks are important. They tell the reader how to think of the word "white".
I am not a teacher.
"White lie" is a common (not "famous") expression. The word "white" should not be surrounded with quotation marks when you write it. Your text displaces "white". Now the word needs quotation marks to help the reader understand that it's being discussed in the phrase where it appears and isn't itself a part of it.
This is extremely difficult to explain. You might want to consult Swann or Fowler to see if they cover the subject.
I am not a teacher.
His name's Swan, Michael Swan.
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