Five examples of compound and complex sentences.

1. Compound sentence: I wanted to go to the beach, but it started raining heavily.

2. Complex sentence: Although I was tired, I decided to stay up late to finish my homework.

3. Compound sentence: She went to the store to buy groceries, and then she stopped by the post office to mail a package.

4. Complex sentence: Since it was a beautiful day, we decided to have a picnic in the park.

5. Compound sentence: He studied hard for the exam, yet he still didn't get a good grade.

Compound Sentences:

1. The birds sang beautifully, and the flowers bloomed in vibrant colors.
2. The students studied hard for their exams, but they still didn't pass.
3. I love chocolate; however, I know it's not good for me.
4. The weather forecast was rain, so we brought umbrellas.
5. We can go to the movies tonight, or we can stay home and watch a movie.

Complex Sentences:

1. I went to the store because I needed milk.
2. The boy who sat next to me in class was very intelligent.
3. We left the house after the rain had stopped.
4. I will study hard so that I can get good grades.
5. If you don't eat your vegetables, you won't get any dessert.