Subject + 叫 + Name: to introduce oneself.

Subject + 是 + Noun: to indicate identity or nationality.

吗 at the end of a sentence turns a statement into a yes/no question.

💡 Practice saying 你好 with a rising tone on 好.

💡 Remember that 一 (yī) changes to yí before a fourth tone (e.g., 一个 yí gè).

💡 Use 是 (shì) to link a subject with a noun, like 'I am...'.