Here's a breakdown:
* Tense: Auxiliary verbs help indicate the time of the action (past, present, future).
* *Example:* "I have walked to the store" (present perfect tense)
* Mood: Auxiliary verbs help express the speaker's attitude or intention.
* *Example:* "She should go to the doctor" (indicative mood, expressing suggestion)
* Voice: Auxiliary verbs can indicate whether the subject of the verb is performing the action (active voice) or being acted upon (passive voice).
* *Example:* "The ball was thrown by the boy" (passive voice)
* Aspect: Auxiliary verbs help describe the duration or completion of an action.
* *Example:* "He has been working all day" (present perfect continuous, indicating ongoing action)
Common Auxiliary Verbs:
* be: am, is, are, was, were, being, been
* have: has, have, had, having
* do: do, does, did
* will: will, would
* can: can, could
* may: may, might
* shall: shall, should
* must: must
Examples:
* "I am eating dinner." (Main verb: eating; auxiliary verb: am)
* "They have finished their homework." (Main verb: finished; auxiliary verb: have)
* "She will go to the party." (Main verb: go; auxiliary verb: will)
* "We should study for the test." (Main verb: study; auxiliary verb: should)
Note: Some verbs can act as both auxiliary verbs and main verbs depending on the context. For example, "be" can be an auxiliary verb in "I am eating" but a main verb in "I am happy."