Is there a semicolon before i.e. in sentence?

No, you do not put a semicolon before "i.e." in a sentence.

Here's why:

* Semicolons are used to separate independent clauses (clauses that could stand alone as sentences). "i.e." is not an independent clause.

* "i.e." is an abbreviation for "that is" and introduces an explanation or clarification. It acts as a parenthetical phrase and should be treated as such.

Here are some examples:

* Correct: We have many options for dinner, i.e., pizza, pasta, or salad.

* Incorrect: We have many options for dinner; i.e., pizza, pasta, or salad.

Note: You can use a comma before "i.e." if the phrase introduces a list of items or provides further information.