Simple sentence :
- Some students like to study in the morning.
- Bibi and Anita go to the library and study every weekend.
Compound sentence :
- Nadiah is beautiful but she so arrogant.
- Remy want to buy a watch that is more beautiful, but he did not have enough money.
Complex sentence :
- The student are studying because they have a test tomorrow.
- After they finished studying, Remy and Nadiah went to watching a movie.
Compound-Complex sentence :
- Anita went to school, but Nadiah remained at home because she had a chicken pox.
- If he change his mind, we shall know for sure that Joe has learned his lesson, but only time will tell.