If An Adjective Ends in an “O,” You Change It To An ____ Before Adding The Adverbial Ending

Adjectives are words that modify or describe a noun, and endings are words – often adverbs – that modify or describe a verb, an adjective, another adverb, or even an entire sentence. When you want to add adverbial endings – such as -ly, -ily, -ward, or -wise – to adjectives that end in “o”, you must change the “o” to an “a” first.

This grammatical rule is a fairly simple one, but it trips up a lot of people. Let’s look at an example: let’s say you wanted to add the adverbial ending -ly to the word “prosperous.”

In this case, you would need to change the “o” to an “a” before you can add -ly. This makes the word “prosperously.”

The same grammatical rule also applies to words like “nervous,” which would become “nervously.” Other words like “horrible” and “tense” would also need to be changed to “horribly” and “tensely,” respectively.

If you’re unsure whether or not a word needs to be changed in this way, one good tip is to look it up in the dictionary. Most dictionaries will indicate whether a word needs to be changed in this way or not.

It’s important to remember that in many cases, changing an adjective’s ending to “a” is necessary before adding adverbial endings. Although it can be a tricky rule to remember, it’s also an important one for mastering your English skills.