Tenses and Subject-Verb Agreement (Concord)

What is Tense?

Tense is the form a verb takes to show when an action happens — in the past, present, or future. Correct use of tense helps a reader or listener understand the timing of events clearly.

The Three Basic Tenses

• Present tense: describes actions happening now or habitually. Example: "She walks to school every day."
• Past tense: describes actions that already happened. Example: "She walked to school yesterday."
• Future tense: describes actions that will happen. Example: "She will walk to school tomorrow."

Tense Forms

Each of the three basic tenses has four forms: simple, continuous (progressive), perfect, and perfect continuous. For example, in the present tense: "I eat" (simple), "I am eating" (continuous), "I have eaten" (perfect), "I have been eating" (perfect continuous).

What is Concord?

Concord (also called subject-verb agreement) is the grammatical rule that requires a verb to agree with its subject in number (singular or plural) and person (first, second, third).

Rules of Concord

• A singular subject takes a singular verb: "The boy plays football."
• A plural subject takes a plural verb: "The boys play football."
• When two subjects are joined by "and", they generally take a plural verb: "John and Mary are friends."
• When subjects are joined by "or" or "nor", the verb agrees with the subject nearest to it: "Either the teacher or the students are responsible."
• Collective nouns (like "team", "family") usually take a singular verb when acting as one unit: "The team is playing well."
• Indefinite pronouns like "everyone", "somebody", and "each" take a singular verb: "Everyone is ready."

Common Concord Errors

A common mistake is using a plural verb with a singular subject or vice versa, especially when other words come between the subject and verb. Example (incorrect): "The list of items are long." Example (correct): "The list of items is long" (the subject is "list", not "items").

Why This Matters

Correct tense and concord usage is essential for clear, grammatically accurate communication in both spoken and written English, and is heavily tested in examinations.