“Thick cloud has formed very close to the ground.” The phrase “thick cloud” is the:

Correct answer: Subject. “Thick cloud” tells who or what the sentence is about, so it is the subject.

Background: The subject is the person or thing that does the action.

• Object: The object receives the action, and this phrase does the action.
• Verb: “Has formed” is the verb.
• Adverb: An adverb describes a verb, and “thick cloud” is a noun phrase.

Did you know? “Thick” is an adjective and “cloud” is the noun.

Memory trick: Who formed? The cloud → subject.