nekosuna ga hitsuyou desu.

to be

Breakdown of nekosuna ga hitsuyou desu.

• が: subject particle
• 必要ひつよう: necessary
• 猫砂ねこすな: cat litter

Questions & Answers about nekosuna ga hitsuyou desu.

How do you read 猫砂?

It’s usually read ねこすな.

• 猫（ねこ） = cat
• 砂（すな） = sand

So 猫砂 literally means cat sand, but in natural English it means cat litter.

What does 必要 mean here?

必要（ひつよう） means necessary or needed.

In this sentence, 猫砂が必要です means something like:

• Cat litter is needed.
• I need cat litter.
• Cat litter is necessary.

Which English translation sounds best depends on the context.

Why is there a が after 猫砂?

The particle が marks the thing that is needed.

So in:

• 猫砂が必要です

the cat litter is the thing being identified as necessary.

A very literal breakdown is:

• 猫砂 = cat litter
• が = marks what is needed
• 必要です = is necessary / is needed

So the structure is basically X が 必要です = X is needed.