Basic sentence patterns:
1. S-V (Subject -Verb)
She is sleeping.
2. S-V-O (Subject -Verb -Object)
We played tennis.
3. S-V-IO-DO (Subject -Verb -Indirect Object -Direct Object)
My friend gave me a Christmas gift.
4. S-V-O-M (Subject -Verb -Object -Modifier)
James walked to school hurriedly.
5. S-V-C (Subject -Verb -Complement)
I am a writer.
These are the basic sentence patterns for simple sentences. However, these are important in parsing complicated sentences. For example,
We went to the park even though it was raining hard.
to the park- Prepositional Phrase/Modifier
Even though- Conjunction
was raining- Verb
Therefore, the sentence is a combination of S-V-M and S-V-M.