The plural form of "knife" is "knives". Similar to many other words in English, the plural form of "knife" takes on a different spelling and pronunciation compared to its singular form.
In general, English has a few different patterns for forming plurals: adding "-s" or "-es" to the end of a word, changing the spelling of the word altogether, or using the same word for both singular and plural (like "sheep" or "deer"). "Knife" falls into the category of words where the spelling is changed to form the plural.
Now, you may be wondering why "knife" suddenly becomes "knives". This is because in Old English (the language that influenced modern English), the "k" sound at the beginning of "knife" used to be pronounced more like the "ch" in "chicken". When the language changed over time, the "k" sound became more pronounced and the plural form kept its old spelling.
So, in summary, the plural form of "knife" is "knives", which is pronounced with a hard "k" sound at the beginning. I hope this helps clear things up for you!
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