Kore wa chiisai neko desu.

This is a small cat.

Watashi no heya wa chiisai desu.

My room is small.

Kinou, chiisai kaban wo kaimashita.

Yesterday, I bought a small bag.

Motto chiisai saizu wa arimasu ka.

Do you have a smaller size?

Ano inu wa mimi ga chiisai desu ne.

That dog has small ears, doesn't it?

Kono kutsu wa watashi ni wa chiisai desu.

These shoes are small for me.