bicycles.
or bikes.
bicycles
The word messenger's is the possessive form for the noun messenger, for example the messenger's bicycle. The plural possessive form is messengers'.
The plural form for the demonstrative pronoun this is these.
The word boys is the plural form of the singular noun boy.Examples:A boy on a bicycle was delivering newspapers. (one boy)Two boys on bicycles were delivering newspapers. (two boys)
The plural form of the word inferno is infernos.
The plural form is ranches.
There is no plural word for if.
There is no plural form for the word, countries. This word itself is a plural.
The plural form is data.
The plural form for the word 'pioneer' is pioneers.
The plural form of the word "baby" is "babies."
The plural form of the word "pharynx" is "pharynges."