What is the difference between Copycat, Mirror Move & Mimic?

Question

Copycat - Copies opponent's last move.
Mirror move - User performs the opponent's last move.
Mimic - Replaces this move with the opponent's last move, for the battle.

This clears that mirror move does not replace it with opponent's last move, but what is difference between copycat & mimic?

Answer 1

Mirror-move and Copycat are the same, but Mimic is the only one that replaces the move for the entire battle. Mirror-move and Copycat just repeat the last move for that turn, Mimic copies the move for the whole battle so you can use it whenever you want until the battle is over/The Pokemon faints/switches out.

Sources: Mimic, Mirror-move, and Copycat.