赤ちゃんakachanha四つん這いyotsunbaiになってninatteはっていたhatteita
The baby was crawling on all fours.

© Based on JMdict, KANJIDIC2, and JMnedict, property of the Electronic Dictionary Research and Development Group, used in conformance with the Group's licence. Example sentences from the Tatoeba project (CC BY 2.0). Kanji stroke order data from the KanjiVG project by Ulrich Apel (CC BY-SA 3.0). See comprehensive list of data sources for more info.

Search other dictionaries for 赤ちゃんは四つん這いになってはっていた。:
Yahoo!辞書 / goo辞書 / alc.co.jp / Weblio / Wiktionary