<span>The verb in the above choices, that agrees with its
subject is letter A: Under the porch lives an opossum</span>
<span> 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. <span>Perfect
tenses serves a portraying the verb or the action word as something that
already happened or is completed, thus the term ‘perfect’. If it is present
perfect tense, it means that the action was already done relatively to the
present (has/have with past participle). If it is past perfect tense, action is
already finished relatively to the past (had with past participle and if it is
future perfect tense, action is complete relatively to the future (will have with
past participle</span></span>
