Singular Indefinite Pronouns:
* Someone left their phone in the library.
* Anyone can learn to play the guitar if they practice.
* Nobody knows the answer to that question.
* Everything is going according to plan.
* Something is wrong with the car.
* Nothing is impossible if you set your mind to it.
* Each student received a certificate.
* Either option is acceptable.
* Neither of the teams scored a goal.
Plural Indefinite Pronouns:
* Many people were at the concert.
* Several of the students volunteered for the project.
* Few people know the truth.
* Both of the dogs are friendly.
Indefinite Pronouns with Singular or Plural:
* All of the food was delicious. (Plural)
* All of the cake is gone. (Singular)
* Some of the books were missing. (Plural)
* Some of the money was stolen. (Singular)
* Most of the students passed the exam. (Plural)
* Most of the water was polluted. (Singular)
Indefinite Pronouns used as Subjects:
* Someone knocked on the door.
* Nothing can stop me now.
* Many have tried and failed.
* Few were able to finish the race.
Indefinite Pronouns used as Objects:
* I met someone interesting at the party.
* They gave everything they had.
* The teacher asked all of the students to be quiet.
Note: Indefinite pronouns can be tricky because their grammatical number (singular or plural) sometimes depends on the context of the sentence. Be sure to consider the meaning of the sentence when choosing the correct verb form.