She should have donated her time so she could others. what are the verbs in the verb phrases?
a. could,
b. should, have, donated
c. should, have, could
d. donated,

In the sentence:

She should have donated her time so she could help others.

The helping verbs are should, have, could

Verbs are simply known as the ‘action’ words – may it be mental, physical or mechanical. When verbs are paired with auxiliaries (helping verbs), they are known as verb phrase. These helping verbs always go first before the actual verb.  

eli whitney was an american inventor best known for inventing the cotton gin. this was one of the key inventions of the industrial revolution and shaped the economy of the antebellum south.