Published on
June 28, 2024
by
Julia Merkus, MA.
Revised on
December 16, 2025
Gray and grey are two ways of spelling the same word, used to describe the shade between black and white. It’s used as an adjective to describe something of that color, as a noun to refer to the color itself, or as a verb to describe the act of becoming that color.
The spelling depends on whether you use British English or American English:
In American English, “gray” is correct.
In British English, “grey” is the usual spelling.
It’s important to choose one spelling and use it consistently. The Quillbot Grammar Checker can help you with this.
Examples: Gray or grey in a sentenceThe gray/grey skies forebode an impending rainstorm.
The artist mixed various shades of gray/grey to create a monochromatic painting.
Paul’s hair started to gray/grey when he was only 21.
In some cases, the spelling of gray or grey is fixed, no matter the version of English. This is true for proper nouns such as the tea blend Earl Grey (never “Earl Gray”) and for the name of the dog breed the greyhound (never “grayhound”).
You use a before a word that starts with a consonant sound (e.g., “b,” “f,” or “t”).
You use an before a word that starts with a vowel sound (e.g., “i,” “e,” or “a”).
When you’re trying to determine whether to use “a” or “an,” you should pay attention to the sound the noun starts with, not its spelling. For example, “hour” is spelled with a consonant at the beginning, but it is pronounced like the word “our.” This means that it starts with a vowel sound and requires the indefinite article “an.”
NoteThe form of the indefinite article depends on the initial sound of the word that comes directly after it. This is often a noun, but it can also be an adjective.
Published on
June 28, 2024
by
Julia Merkus, MA.
Revised on
December 16, 2025
Modelling and modeling are both correct spellings of the present participle and gerund of the verb “model,” meaning “create a representation of something,” “shape something (like clay),” or “display something by wearing it.”
The spelling depends on whether you use British English or American English.
In British English, “modelling” with a double “l” is the most common.
In American English, “modeling” with one “l” is standard.
It’s important to choose one spelling and use it consistently. The Quillbot Grammar Checker can help you with this.
Examples: Modelling or modeling in a sentenceScientist use climate modelling/modeling to predict the effects of global warming.
My big dream is modelling/modeling for Lancôme.
Destiny has been modelling/modeling for years before trying a career in theater.
The difference in spelling is also true for similar verbs, such as labelling or labeling and travelling or traveling.
Published on
June 28, 2024
by
Julia Merkus, MA.
Revised on
December 16, 2025
Labelled and labeled both are correct spellings of the past tense of the verb “label,” which means “attach a label to something” or “categorize something or someone.” The spelling depends on the type of English you use:
In British English, “labelled” with a double “l” is standard.
In American English, “labeled” with one “l” is correct.
It’s important to choose one spelling and use it consistently. The Quillbot Grammar Checker can help you with this.
Examples: Labelled or labeled in a sentenceSusie has accidentally labelled/labeled all the jeans incorrectly.
I was labelled/labeled a rebel as a teenager.
Leron labelled/labeled every book on the shelf in one afternoon.
Published on
June 28, 2024
by
Julia Merkus, MA.
Revised on
December 16, 2025
Learnt and learned are two ways of spelling the past tense of the verb “learn,” which means “to gain skill or knowledge.”
In British English, “learnt” is standard.
In American English, “learned” is standard.
It’s important to choose one spelling and use it consistently. The Quillbot Grammar Checker can help you with this.
Examples: Learnt or learned in a sentenceLorenzo learnt/learned to cook delicious Italian dishes by following his grandfather’s recipes.
The students learnt/learned about the history of the USA in their classes.
Mason learnt/learned to speak three languages during high school.
Published on
June 28, 2024
by
Julia Merkus, MA.
Revised on
December 16, 2025
Spelt and spelled are two ways of spelling the past tense of the verb “spell,” which means “forming words with the letters in the correct order.” The spelling depends on the type of English you use.
In British English, “spelled” and “spelt” are both used, but “spelt” is a bit more common.
In American English, “spelled” is standard.
It’s important to choose one spelling and use it consistently. The Quillbot Grammar Checker can help you with this.
Examples: Spelt or spelled in a sentenceEoghan carefully spelt/spelled his name to avoid any mistakes.
Abdullah spelt/spelled “synecdoche” with ease during the spelling bee competition.
Kimberley accidentally spelt/spelled the author’s name wrong in her essay.
Published on
June 28, 2024
by
Julia Merkus, MA.
Revised on
November 5, 2025
“Use to” and “used to” are related phrases that share a meaning. However, they are not used in the same way.
Use to is a verb that indicates a past action, state, or habit. It is always preceded by “did,” “didn’t,” or “did not.”
Used to is also a verb that indicates a past action, state, or habit, but it is not used with “did,” “didn’t,” or “did not.” It is also used as an adjective to mean “accustomed to.”
These phrases are often confused because the final “d” in “used” and the “t” in “to” seem to blend together in pronunciation, causing them to sound like homonyms. However, it’s important to use them correctly, especially in academic writing or professional communication.
Examples: Used to in a sentence
Examples: Use to in a sentence
Terrance has three dogs, so he’s used to training them.
Didn’t you use to play the piano?
I used to babysit during college.
She didn’t use to eat vegetables, but now she loves them.
Published on
June 28, 2024
by
Julia Merkus, MA.
Revised on
November 5, 2025
“Alright” and “all right” are two spellings of the same word, which means “okay” or “good enough,” depending on the context. It can be used as an adjective, adverb, or interjection.
“All right” (two words) is generally preferred in formal writing, while “alright” (one word) is acceptable in informal contexts. However, “all right” is considered the more standard and formal spelling, especially in academic or professional writing.
Examples: Alright or all right in a sentenceThe food in the restaurant was all right. Alright, alright, I’ll tell you everything!
I hope she’s feeling all right after getting injured during the hike.
Allright (with double “l” and no space”) is a common misspelling of the word and is never considered correct.
Published on
June 28, 2024
by
Julia Merkus, MA.
Revised on
November 4, 2025
Theirs is a third-person plural possessive pronoun. It’s also used as a gender-neutral singular possessive pronoun. It’s sometimes written as “their’s”—with an apostrophe—but this spelling is incorrect.
Possession is typically indicated by adding ’s to a word, but possessive pronouns are an exception to this rule. This means that “their’s” is always incorrect. This is also true for other possessive pronouns, such as ours and theirs. The Quillbot Grammar Checker will fix this and other common mistakes automatically.
Examples: Theirs and their’s in a sentence
I don’t know if you can borrow this iPad. It’s their’s, not mine.
I don’t know if you can borrow this iPad. It’s theirs, not mine.
