Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It plays vital roles in digestion, heart and muscle function, brain development and maintenance of bones.
A singular subject is a noun or a pronoun for just one person, place, or thing. A plural subject is a noun or a pronoun that is two or more persons, places, or things. Exampl â¦ es: Singular subject: The boy came for lunch. He was hungry. Plural subject: The boys came for lunch.
When the statement being made is about a situation in the past that actually occurred (not a hypothetical situation), then was is for singular subjects, and were is for plural. I was there.. They were not there.. We were there.. You and I were there.. Exception: even though the subject you is singular, you use were. You were there..