If you forget to call "uno," you must draw two cards.
If you forget to say "uno," you draw two cards.
If you forget to say "uno" during a game, you must draw two cards.
When you forget to say "uno" during a game, you must draw two cards.
If you forget to say "UNO" when you have one card left, you must draw two cards as a penalty.
If you forget to say "uno," you must draw two cards.
If you forget to say "Uno" during the game, you must draw two cards as a penalty.
If you forget to say "uno" in the card game, you have to draw two cards.
If you forget to say "Uno" in the game of Uno, you must draw two cards as a penalty.
If you forget to say "uno" during a game, you must draw two cards as a penalty.
If you forget to say "uno" before playing your second-to-last card in the game Uno, you have to draw two cards.
If you forget to say "Uno" before playing your second-to-last card in Uno, you must draw two cards as a penalty.
If you don't say "uno," you draw two cards.