Commonly Confused Words
Spelling B
Find the mistake
Correct preposition
Singular and plural
100

Affect vs. Effect

Affect is a verb meaning to influence. Effect is a noun meaning result.

100

absense, abscence or absence?

(the state of being away from a place or person)

3. absence

100

It was a real nice day today.

It was a really nice day today.

100

The results depend ... the sample size.

The results depend on the sample size.

100

What is the plural form of sheep?

Sheep

200

Than vs. Then

Than is a conjunction used to compare two things. Then is usually an adverb indicating time.

200

colleague, coleague or collegue?

(a person with whom one works in a profession or business)

1. colleague 

200

The study used a well known method.

The study used a well-known method.

200

I’ll see you ... the morning, at 10 o’clock.

I’ll see you in the morning, at 10 o’clock.

200

What is the singular form of cacti?

Cactus

300

Complement vs. Compliment

Compliment means to praise or flatter someone. Complement means to enhance, complete, or go well with something else

300

curiousity, curiosity or curiocity?

(a strong desire to know or learn something)

2. curiosity

300

He almost walked for the entire day.

He walked for almost the entire day.

300

The results were consistent ... previous studies.

The results were consistent with previous studies.

300

What is the singular form of bacteria?

Bacterium

400

Who vs. Whom

Who is a pronoun used as the subject of a sentence. Whom is a pronoun used as a direct object.

400

disappoint, dissapoint or dissappoint?

(fail to fulfil the hopes or expectations of)

1. disappoint

400

Every boy must sign in when they arrive.

Every boy must sign in when he arrives.

400

I was ... the bus when you phoned.

I was on the bus when you phoned.

400

What is the plural form of alumnus?

Alumni

500

Appraise vs. Apprise

Appraise means to assess the value, quality, or performance of something. Apprise means to inform or notify someone about something.

500

existance, existanse or existence?

(the fact or state of living or having objective reality)

3. existence

500

The results of the experiment shows significant improvement.

The results of the experiment show significant improvement.

500

We arrived ... Paris at 8pm.

We arrived in Paris at 8pm.

500

What is the plural form of opus?

(not opuses)

Opera