This site from the Internet Grammar of English of the University College …
This site from the Internet Grammar of English of the University College of London provides a general overview of sentence structure. Content includes an online exercise, and is worth checking out on the subject.
While plural nouns often indicate more than one of something with a …
While plural nouns often indicate more than one of something with a simple "s" or "es," irregular plural nouns do not. They change the word entirely. Elf becomes elves, tooth becomes teeth! [0:45]
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