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Knowledge Base

Explore the breadths and depths of Grammarflex’s knowledge base, containing resources and comprehensive guides on pretty much everything you could want to know related to English grammar and writing.

Learn all about the main parts of speech, which (in case you forgot) comprises of verbs, nouns, adjectives, pronouns, adverbs, conjunctions, prepositions and interjections. Beyond the fundamentals of English grammar, you’ll find guide on writing mechanics and style, literary devices amd more. 

What’s the Plural of Foot?

Foot plural is feet. Look tooth plural is teeth, foot is an irregular English plural noun that does not end in s/es.

Is Alumni Plural or Singular?

The Latin noun, alumni (meaning a graduate of a former school or university) is the plural of alumnus. Alumnus is singular.

What’s the Plural of Series?

The plural and singular of series is series. Series already refers to a number of things, and so it stays the same either way.

What’s the Plural of Beer?

As a general guide, beer (no -s) is most often the plural of beer. When referring to varieties, or types of beers, the standard pl.