1. Base Form: This is the simplest form of a verb, often found in dictionaries.
* Example: *walk, eat, sing*
2. Tense: Verbs change form to show when an action happened.
* Example: *walked, eating, will sing*
3. Voice: Verbs can be active (subject performs the action) or passive (subject receives the action).
* Example: *He walked the dog. The dog was walked by him.*
4. Mood: Verbs indicate the speaker's attitude towards the action.
* Example: *He will walk the dog. (Indicative, stating a fact). He may walk the dog. (Subjunctive, expressing possibility). Walk the dog! (Imperative, giving a command).*
5. Aspect: Verbs can show whether an action is completed, ongoing, or habitual.
* Example: *He walked the dog. (Simple past, completed). He was walking the dog. (Past continuous, ongoing). He walks the dog every day. (Simple present, habitual).*
6. Auxiliary Verbs: These help verbs create different tenses, moods, and voices.
* Examples: *is, am, are, was, were, have, has, had, will, would, can, could, may, might, should, must*
7. Verb Phrases: Some verbs consist of multiple words, acting as a single unit.
* Example: *has been walking, will be walking, should have walked*
In Summary: A verb can be a simple base form, or it can involve a combination of tense, voice, mood, aspect, auxiliary verbs, and verb phrases to create a complex and nuanced meaning.