How to Remember the Spelling of Whoa. A simple trick to remember the spelling of whoa is to remember that it begins with the question word whoIf you like rhymes you can just memorize a phrase to remember which two letters are in the middle of whoa. Spell Check Microsoft Word Documents With A Keyboard Shortcut How can you avoid the temptation to spell whoa with the H at the end. How to check grammatical mistakes in ms word . Grammarly corrects over 250 grammatical mistakes while also catching contextual spelling errors and poor vocabulary usage. Works wherever you write online Grammarly helps you write mistake-free in Gmail Facebook Twitter Tumblr LinkedIn and nearly anywhere else you write on the Web. Never say whoa to a horse named HO.