
- In English, the word “sister’s” is used to show singular possessive, indicating that something belongs to one sister. For example, you would say, “Sister’s car” when referring to the car owned by a single sister. On the other hand, “sisters'” is used to show plural possessive, indicating possession by multiple sisters. For instance, “Sisters’ names” would refer to the names of more than one sister. Lastly, the word “sisters” is simply the plural noun, referring to more than one sister, but without showing possession. An example would be, “Sarah and Emily are sisters.”
- This distinction is important in understanding possession and belonging. The use of sister’s or sisters’ often comes down to how many sisters are involved and whether you’re talking about something they own. When there is a communication breakdown regarding these forms, it can lead to confusion. For example, if someone says, “Sisters’ car,” it could mean that the car belongs to multiple sisters, but without proper context, it’s hard to be sure. Always pay attention to whether you’re talking about one sister or multiple sisters to use the correct form.
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Singular Possessive: Sister’s
The first step in mastering the singular possessive form is understanding that it shows something belongs to one sister. When we talk about something a single sister owns, we add ‘s to the noun, like in the example, “sister’s room.” This means the room is hers. If we are talking about her favorite toy, we say “sister’s favorite toy” to show possession. It’s important to remember the apostrophe and ‘s when writing the singular possessive, as it shows the ownership of one sibling, like when you say “sister’s tidy room” to refer to how one sister keeps her space organized.
Plural Possessive: Sisters’

When we talk about something that belongs to more than one sister, we use the plural possessive form, adding an apostrophe after the ‘s’ at the end of the noun. For example, if multiple sisters share rooms, you would write “sisters’ rooms” to show that the rooms belong to them. If you are referring to their favorite activities, you might say “sisters’ favorite activities” to show that these activities are enjoyed by many siblings. The apostrophe after ‘s’ indicates possession, but since there are multiple sisters, it reflects the ownership of more than one sibling.
Plural Form: Sisters
The plural form of sister is sisters, used when referring to more than one sister. In instances where you talk about several sisters, you don’t need an apostrophe because you’re just referring to the many siblings themselves, not their possession. For example, “The sisters arrived together” refers to many siblings coming at the same time. If they play together, you would say, “The sisters like to play together” to show that several sisters are involved. This form is used whenever you’re referring to multiple sisters, simply describing them without indicating ownership.
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Conclusion

Mastering the use of singular possessive and plural possessive forms is crucial for clear communication. This guide offers a reference guide to help Grade 3 readers distinguish between the two, using examples like sister’s for singular possessive and sisters’ for plural possessive. It’s also important to understand plural forms, like sisters, which simply indicates more than one sister. By reviewing the examples and tables provided, you can gain confidence in using these possessive forms correctly in various contexts..