Which statement describes a regular verb?

• A. A verb that never changes form.
• B. A verb that describes an action that happens now.
• C. A verb that forms the past tense by adding \"ed\" to the base form.
• D. A verb that is used only in questions.

Answer: (C)

Regular verbs follow a simple rule for the past tense: add -ed to the base form. This is what makes a verb regular. For example, walk becomes walked, jump becomes jumped. The distinction matters because irregular verbs don’t follow this pattern (run → ran, eat → ate). The other statements don’t describe how regular verbs behave: verbs that never change form aren’t accurate since verbs do change with tense; describing an action happening now points to present tense, not past; and a verb used only in questions isn’t a defining feature of regular verbs. So the description of forming past tense by adding -ed is the correct way to describe a regular verb.