Subject/Verb Agreement
Comma Usage
Homonyms
Apostrophes
Indefinite Pronouns
100

1. The men are working tirelessly. 

2. The men is working tirelessly.

1. The men are working tirelessly.

100

1. Yes you may go. 

2. Yes, you may go.

 2. Yes, you may go.

100

1. The company wanted its business to be protected. 

2. The company wanted it's business to be protected.

1. The company wanted its business to be protected.

100

1. Mary is my youngest sisters' best friend.

2. Mary is my youngest sister's best friend.

2. Mary is my youngest sister's best friend.

100

1. Each must do their part.

2. Each must do his or her part.

2. Each must do his or her part.

200

1. Each of us are getting good results. 

2. Each of us is getting good results.

2. Each of us is getting good results.

200

1. Ed, are you coming with us? 

2. Ed are you coming with us?

1. Ed, are you coming with us?

200

1. Whenever Egor's family went to Disneyland, we wanted to go, too.

2. Whenever Egor's family went to Disneyland, we wanted to go, to.

1. Whenever Egor's family went to Disneyland, we wanted to go, too.

200

1. Where are the athletes?

2. Where are the athletes'?

1. Where are the athletes?

200

1. Some of the people is going by bus.

2. Some of the people are going by bus.

2. Some of the people are going by bus.

300

1. The cat, with her seven kittens, are in the garage. 

2. The cat, with her seven kittens, is in the garage.

2. The cat, with her seven kittens, is in the garage.

300

1. Sandra, the mailwoman, is always punctual.

2. Sandra the mailwoman, is always punctual.

1. Sandra, the mailwoman, is always punctual.

300

1. The principle was required to enforce the school's dress code policy.

2. The principal was required to enforce the school's dress code policy.

2. The principal was required to enforce the school's dress code policy.

300

1. The camper's gear is carried on their backs.

2. The campers' gear is carried on their backs.

2. The campers' gear is carried on their backs.

300

1. Most of the animals are healthy.

2. Most of the animals is healthy.

1. Most of the animals are healthy.

400

1. The band performs its Friday night routine. 

2. The band perform its Friday night routine.

1. The band performs its Friday night routine.

400

1. "I hope you complete your work," she said, "before you leave."

2. "I hope you complete your work" she said, "before you leave."

1. "I hope you complete your work," she said, "before you leave."

400

1. My dad asked for their street address.

2. My dad asked for there street address.

1. My dad asked for their street address.

400

1. The Dr.'s office hours are posted on the front door.

2. The doctor's office hours are posted on the front door.

2. The doctor's office hours are posted on the front door.

400

1. Many are happy to share their stories.

2. Many are happy to share his or her story.

1. Many are happy to share their stories.

500

1. Each of the men were ready to assist. 

2. Each of the men was ready to assist.

2. Each of the men were ready to assist.

500

1. Dear Mr. President,

2. Dear Mr. President:

1. Dear Mr. President,

500

1. What kind of effect did the book have on you?

2. What kind of affect did the book have on you?

1. What kind of effect did the book have on you?

500

1. Your the best friend I've ever had!

2. You're the best friend I've ever had!

2. You're the best friend I've ever had!

500

1. One of the actors live near me.

2. Both of the actors live near me.

2. Both of the actors live near me