ようになる
yōni naru

Godan Verb (ru)
Expression

1. to reach the point where ...; to come to ...; to come to be that ...; to start to ...; to begin to ...

Usually Written in Kana
うちの あか ぼう くちをきくようになってきました。
uchino akambōwa kuchio kiku yōni natte kimashita.
Our baby is learning to speak.
すぐ およげるようになりますよ。
sugu oyogeru yōni narimasuyo.
You'll soon be able to swim.