Must 得 děi Grammar

Grammar Point:
The Chinese grammar particle 得 děi is used to express the necessity or obligation to do something. It can be translated into English as “must,” “have to,” or “should.”

I know it can be very confusing because it is the same character as 得 de, but actually, you can distinguish between them based on where the verb is located in the sentence. If the verb comes before 得, then it is 得 de. If the verb comes after 得, then it is 得 děi.

Structure

S + 得 + Verb

你nǐ得děi在zài明天míngtiān前qián完成wánchéng工作gōngzuò你nǐ得děi在zài明天míngtiān前qián完成wánchéng工作gōngzuò
You have to finish your work by tomorrow.

如果rúguǒ我wǒ買mǎi給gěi你nǐ， 回家huíjiā後hòu你nǐ得děi整理zhěnglǐ你的nǐde房間fángjiān如果rúguǒ我wǒ买mǎi给gěi你nǐ， 回家huíjiā后hòu你nǐ得děi整理zhěnglǐ你的nǐde房间fángjiān
If I buy it for you, you have to tidy up your room when you get home.

要yào學xué好hǎo中文zhōngwén， 就jiù得děi交jiāo一個yíge說shuō中文zhōngwén的de朋友péngyǒu要yào学xué好hǎo中文zhōngwén， 就jiù得děi交jiāo一个yíge说shuō中文zhōngwén的de朋友péngyou
To learn Chinese well, you must make a friend who speaks Chinese.

想xiǎng過guò得de舒服shūfú， 就jiù得děi努力nǔlì掙錢zhèngqián想xiǎng过guò得de舒服shūfu， 就jiù得děi努力nǔlì挣钱zhèngqián
Want to live a comfortable life, you have to work hard to earn money

我wǒ得děi做zuò什麼shénme， 你nǐ才cái願意yuànyì做zuò我的wǒde女朋友nǚpéngyǒu？ 我wǒ得děi做zuò什么shénme， 你nǐ才cái愿意yuànyì做zuò我的wǒde女朋友nǚpéngyou？
What do I have to do to make you willing to be my girlfriend?

要yào我wǒ當dāng你的nǐde女朋友nǚpéngyǒu， 你nǐ得děi等děng下輩子xiàbèizi要yào我wǒ当dāng你的nǐde女朋友nǚpéngyou， 你nǐ得děi等děng下辈子xiàbèizi
If you want me to be your girlfriend, you have to wait until the next life.