identify the part of speech for the underlined word? the storm remain a threat to the coastal village

The - definite article

Storm - noun

Remains - verb (to remain means to stay in the same manner or in the same condition; continue to exist. But it is formal). The storm continues being a threat to the coastal village.

A - indefinite article

Threat - noun

To - preposition

The - definite article

Coastal - adjective

Village - noun.

Identify the part of speech for the underlined word. The storm * remains * a threat to the coastal village.

a. action verb