"Before" is an adverb, just like "again"' Take this sentence as an example. "I've seen this movie before." In this sentence "before" is modifying the understood word "now".
Traveled is a main verb; it does have a meaning of its own and doesn't need to be supported by another verb.
if it is action or not
An action, you can swim.
It is an Action Verb
there is the verb as it's the doing action in the sentence.
is before a common noun or an action verb
The verb for growth is grow. As in the action "to grow". In past tense, the verb is grew. As in the action "to have grew before".
A verb is a word that expresses an action, occurrence, or state of being in a sentence. A verb phrase is a group of words that includes the main verb and any helping verbs that modify the main verb.
It is an action verb.
Yes, seats is an action verb. Example: He seats the women and children before all others.
A helping verb can work with the main verb to tell about an action. The helping verb always comes before the main verb.
Was (past tense of be) can be used as a linking verb and as an auxiliary verb. It is never an action verb.Linking verb: Bob was a teacher before his retirement.Auxiliary verb: Sheila was driving when the tornado hit.Yes was is a linking verb and it is a past tense of be.
A helping verb can work with the main verb to tell about an action. The helping verb always comes before the main verb.
The tense of the verb "left" in the sentence is past perfect. This tense is formed by using the auxiliary verb "had" before the past participle of the main verb, and it is used to show that an action was completed before another past action.
"Before" can serve as both a preposition and an adverb. When it comes before a verb, it usually functions as a preposition, indicating the time, place, or motion of the action expressed by the verb.
A past tense verb that indicates an action that happened in the past prior to another action is "had done." This verb form is used to show that the action was completed before another action occurred.
The helping verb "had" is used in the past perfect tense to show an action that was completed before another action in the past. For example, "She had finished her work before the meeting started."