"Це не його речі."

Translation: These are not his things.

[Sushinese]

Things or belongings

[sagitta145]

Please keep in mind that not all things are belongings and vice versa. Річ = thing.

In this sentence you can use "belongings" just because of the context.

[hudnut217]

How would you say "This is not his."?

[sagitta145]

Це не його.