A sentence always contains a subject (who/what the sentence is about) and a predicate (what the subject is doing). The predicate includes the verb and any objects or modifiers.
Subjects can be simple (one word) or compound (multiple words/phrases). Predicates similarly divide into simple (verb only) and compound (multiple verbs/clauses).
The subject-verb relationship determines tense and agreement. A singular subject takes a singular verb ("The cat sleeps"), while plural subjects take plural verbs ("The cats sleep").
Predicates can describe actions, states of being, or possessives. For example: "She runs" (action), "They are happy" (state), "He owns a car" (possession).
| Type | Example |
|---|---|
| Simple Subject | The dog barks. |
| Compound Subject | Maria and John study. |
| Simple Predicate | Birds fly. |
| Compound Predicate | She laughed and left. |
Many confuse subjects with predicates or misidentify them. For example, in "Running quickly, she reached the finish line," "she" is the subject, not "running quickly."
Another mistake is subject-verb disagreement: "The team are playing" should be "The team is playing" because "team" is singular.
Understanding subjects and predicates improves clarity and correctness in writing. For deeper analysis, explore complete vs. simple subjects and predicates.