The forms of the verb to apologize used with plural nouns are:
The plural form of "do" is "do" and the plural form of "don't" is "don't." These words do not change in the plural form when used in a sentence.
The plural form of him, her, or it is them. (objective pronouns)
The plural form of "was" is "were."
The plural form of "I" is "we."
The plural form of "is" is "are."
The correct form is: Accept my most sincere apologies for being late. Please, accept my apologies for being late. So is the plural form of apology, which is apologies. If you want to use the verb form, it would be: I want to apologize for being late. I apologize for being late.
apologetic
The plural form of "do" is "do" and the plural form of "don't" is "don't." These words do not change in the plural form when used in a sentence.
The plural form of him, her, or it is them. (objective pronouns)
Bridges is the plural form of bridge.
The plural form of "was" is "were."
The plural form of "I" is "we."
The plural form of "is" is "are."
The plural form of mouth is mouths. The plural form of month is months. The Mounth is a range of hills in Scotland and does not have a plural form.
"Groceries" is the plural form of "grocery."
"Beliefs" does not have a plural form, as it is already plural. Beliefs is the plural form of belief.
The plural form of the demonstrative pronoun 'that' is those.