To create complex sentences with subordinate clauses in Mandarin Chinese, follow these simple steps:

1. What Are Subordinate Clauses?
   Subordinate clauses are parts of a sentence that can’t stand alone. They need the main part of the sentence to make sense. You often start them with words like “因为” (because), “虽然” (although), or “如果” (if).

   Example:

   • 虽然天气很冷，
     (Although the weather is cold,)
   • 我仍然决定去跑步。
     (I still decided to go for a run.)

2. Order of Clauses:
   You can place the subordinate clause either before or after the main part of the sentence, depending on what you want to highlight.

   Example:

   • 如果你需要帮助，
     (If you need help,)
   • 请告诉我。
     (please tell me.)

3. Different Subjects:
   Sometimes, the subject in the subordinate clause is different from the one in the main clause.

   Example:

   • 因为他很忙，
     (Because he is busy,)
   • 她决定自己去。
     (she decided to go by herself.)

4. Expand Your Vocabulary:
   Use phrases that connect ideas and make conversations easier to understand.

By following these rules, students can understand complicated texts better and share their ideas clearly.