Question

等你当了爸爸，你就会知道做父母多么不容易。 When you act as the father, you will become aware of how hard it is to be a parent. 等(到) + Time Word / [Verb Phrase] ，Subj.  + 再 / 就 / 才 + Predicate

Accepted Answer

Děng nǐ dāng le bàba, nǐ jiù huì zhīdào zuò fùmǔ duōme bù róngyì. Expressing "when" with "dengdao" https://resources.allsetlearning.com/chinese/grammar/ASG68F61

中文	等你当了爸爸，你就会知道做父母多么不容易。
Pinyin	Děng nǐ dāng le bàba, nǐ jiù huì zhīdào zuò fùmǔ duōme bù róngyì.
English	When you act as the father, you will become aware of how hard it is to be a parent.
Article Title	Expressing "when" with "dengdao"
Grammar Construct	等(到) + Time Word / [Verb Phrase] ，Subj. + 再 / 就 / 才 + Predicate
Source URL	https://resources.allsetlearning.com/chinese/grammar/ASG68F61

Nǐ 等你当了爸爸，你就会知道做父母多么不容易 Děng Dāng Le Bàba Jiù Huì