Strictly speaking the plural for Mr. is Messrs. However, this one is full of traps. Firstly, you can only use this when writing to people; when speaking to two or more males use the alternative Gentlemen. Secondly, use it when writing to named individuals; when writing to un-named people, use "Dear Sirs". Lastly, even when writing to named individuals, it is better to address the letter to Messrs. Smith and Jones, but begin with Dear Sirs ( unless, of course, you are on first name terms with them).
The plural for the abbreviation Mr. is Messrs.; the plural form for the word Mister is Misters.
Messrs. See Related links below this box.
Bridges is the plural form of bridge.
"Beliefs" does not have a plural form, as it is already plural. Beliefs is the plural form of belief.
There is no plural form for the word, countries. This word itself is a plural.
Messers (Messrs.)
it is Mister's. If it was abbreviated Mr's.
The plural for the abbreviation Mr. is Messrs.; the plural form for the word Mister is Misters.
Messrs. See Related links below this box.
singular: monsieur plural: messieurs
"les messieurs" is the (irregular) plural form of "le monsieur" "monsieur" is an appellation akin to "mister" in French.
The term "messrs" is a plural form of the title "mister" and an abbreviation of the similar "messieurs". It's often used in English honorifics for men.
Herr, plural herrar, definite herrn.
Mister
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.