シャツ、裏返しよ。

しゃつ、裏返しよ。

Your shirt is inside out.

シャツ、裏返(うらがえ)しよ。

Shatsu, uragaeshi yo.

シャツ (シャツ)

shirt (underwear); undershirt; singlet; shirt (outerwear, esp. dress shirt)

裏返し (うらがえし)

inside out; upside down; flip side; opposite; contrary; reverse

よ (よ)

indicates certainty, emphasis, contempt, request, etc.; used when calling out to someone; used to catch one's breath or get someone's attention; yo!

Readings: リ、うら

Meanings: back, amidst, in, reverse, inside, palm, sole, rear, lining, wrong side

Readings: ヘン、かえ.す、 -かえ.す、かえ.る、 -かえ.る

Meanings: return, answer, fade, repay