１ヶ月以内に帰ってきなさい。

１ヶ月以内に帰ってきなさい。

Come back within a month.

１ヶ月(かげつ)以内(いない)に帰(かえ)ってきなさい。

Ichi kagetsu inaini kaetteki nasai.

一 (いち)

one; best; first; foremost; beginning; start; bottom string (on a shamisen, etc.)

カ月 (かげつ)

(number of) months

帰る (かえる)

to return; to come home; to go home; to go back; to leave; to get home; to get to home plate

為さる (なさる)

to do

Readings: ゲツ、ガツ、つき

Meanings: month, moon

Readings: イ、もっ.て

Meanings: by means of, because, in view of, compared with

Readings: ナイ、ダイ、うち

Meanings: inside, within, between, among, house, home

Readings: キ、かえ.る、かえ.す、おく.る、とつ.ぐ

Meanings: homecoming, arrive at, lead to, result in