Question

I promise to help you change into complex

Answer 1

She promise to her/ that she help her.

Answer 2

Explanation:

I promise you that I help you always. It is the complex sentence which has a clause 'that'. The sentence has two parts and a clause 'that'. When a clause joins two separate sentences to form a single senetcne it is called complex sentence. In a complex sentence one sentence should be dependent on the another. One sentence can be independent in the complex sentence.