This Khan Academy lesson group discusses how to identify and construct different types of sentences.
- Simple and compound sentences (video)
- Practice: simple and compound sentences
- Practice: rearranging simple and compound sentences
- Complex sentences (video)
- Compound-complex sentences (video)
- Practice: Complex and compound-complex sentences
Here is the link to the lesson: https://www.khanacademy.org/humanities/grammar/syntax-sentences-and-clauses/types-of-sentences/v/simple-and-compound-sentences-syntax-khan-academy