I believe it is already in plural form, as well as it's regular form. For example, you don't say gooses, but you say "goose." I'm pretty sure you wouldn't say ellipsises. EDIT:::EDIT:::EDIT:::EDIT:::EDIT:::EDIT:::
With all due respect, this is an incredibly wrong . The plural form of "goose" is "geese." Additionally, the plural form of "ellipsis" is "ellipses" (pronounced "ee-lip-sees").
The plural of ellipsis is ellipses.
There is no plural form for the word, countries. This word itself is a plural.
The plural of diary is diaries.
The plural form of the word gelato is gelati.
The plural form of the word 'deed' is 'deeds'.
"Ellipsis" is the singular form. The plural form is "ellipses."
The plural of ellipsis is ellipses.
The plural form for the demonstrative pronoun this is these.
The guidelines of the Modern Languages Association in the U. S. accept either "ellipsis's" or "ellipsis'". More conservative grammarians insist on the first form only.
The plural form of the word "inferno" is "infernos."
The plural form of the word "ranch" is "ranches."
There is no plural form for the word, countries. This word itself is a plural.
The plural form is data.
There is no plural word for if.
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."