Use 岁 (suì) to tell someone your age. The sentence pattern is a
bit different from English, however.
Structure
The structure for telling someone's age with 岁 (suì)
is:
Subj. + Number + 岁
This is equivalent to someone "is x years old" in
English. Notice that you don't need to include any verb when you use 岁 (suì).
Examples
✔ 我
20 岁 。
Wǒ èrshí suì.
I am 20 years old.
✔ 我 妈妈 今年 45 岁 。
Wǒ māma jīnnián sìshí-wǔ suì.
My mother is 45 years old this year.
✔ 我 儿子 一 岁 半。
Wǒ érzi yī suì bàn.
My child is one and a half years old.
✔ 你 爷爷 今年 80 岁 吗？
Nǐ yéye jīnnián bāshí suì ma？
Is your grandpa eighty years old this year?
✔ 他 女朋友 也 20 岁 吗？
Tā nǚpéngyou yě èrshí suì ma?
Is his girlfriend also twenty years old?
Note that you don't need the verb 是 (shì)
in any of these sentences, and you don't need a measure wordlike 个 (gè)
either. In fact, it would be incorrect to use either of those with 岁 (suì):
ㄨ 我 的 孩子 一 个 岁 。
Wǒ de háizi yī gè suì.
ㄨ 我 的 孩子 是 一 岁 。
Wǒ de háizi shì yī suì.
✔ 我 的 孩子 一 岁 。
Wǒ de háizi yī suì.
My child is one year old.
