There are two accepted forms for possessive singular nouns ending in s:
Add an apostrophe (') after the existing s at the end of the word: bacillus'
Add an apostrophe s ('s) after the existing s at the end of the word: bacillus's
Examples:
This bacillus' function is to assist the decay of organic matter.
This bacillus's function is to assist the decay of organic matter.
Note: If you are a student, use the form that is preferred by your teacher.
Bacilli is plural. The singular is bacillus.
The singular of bacilli is bacillus. It is a rod-shaped bacterium commonly found in soil and water.
The plural form of the noun "bacillus" is "bacilli."
Scientists have found that Bacillus species can help improve soil health by breaking down organic matter.
No, Bacillus subtilis is not a photoautotroph. It is a heterotrophic bacterium, meaning it obtains its energy and carbon from organic compounds in its environment rather than from photosynthesis.
Bacilli is plural. The singular is bacillus.
The singular possessive form of "test" is "test's".
The singular possessive pronouns are "my," "mine," "your," "yours," "his," "her," and "its."
The plural form of the noun 'bacillus' is bacilli.
The singular possessive of "ant" is "ant's" and the plural possessive is "ants'".
Museum is singular. Museum's is singular possessive. Museums is plural. Museums' is plural possessive.
The singular possessive form of "classmate" is "classmate's."
Taco's is the singular possessive.
The singular possessive of dish is dish's
The singular possessive is Martin's.
Buzz's is the singular possessive.
The singular possessive is fish's.