doorways
The rules for making plural compound nouns are the same as the rules for making plural nouns. The ending of the word determines the form of the plural. For example:pole to poles; flagpole to flagpolesway to ways; doorway to doorwaysbaby to babies; crybaby to crybabiesbox to boxes; breadbox to breadboxesknife to knifes; jackknife to jackknives
There is no plural form. Do and Do not are verbs
The plural form of him, her, or it is them. (objective pronouns)
Bridges is the plural form of bridge.
The plural form of "is" is "are."
The plural form of "was" is "were."
The plural form of "I" is "we."
The rules for making plural compound nouns are the same as the rules for making plural nouns. The ending of the word determines the form of the plural. For example:pole to poles; flagpole to flagpolesway to ways; doorway to doorwaysbaby to babies; crybaby to crybabiesbox to boxes; breadbox to breadboxesknife to knifes; jackknife to jackknives
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.