kono rokkaa o akemasu.

I open this locker.

Breakdown of kono rokkaa o akemasu.

• を: direct object particle
• この: this
• 開あける: to open
• ロッカー: a locker

Questions & Answers about kono rokkaa o akemasu.

Why is it この ロッカー and not これ ロッカー?

この is a determiner, so it must come directly before a noun: この ロッカー = this locker.

これ is a standalone pronoun, meaning this one. It cannot directly modify a noun.

• この ロッカー = this locker
• これ = this one

So if you want to say this locker, この is the correct choice.

What does the particle を do here?

を marks the direct object of the verb. It shows what is being opened.

In この ロッカー を 開けます, the thing being opened is この ロッカー.

So the structure is:

• この ロッカー = this locker
• を = object marker
• 開けます = open

A natural way to think of it is: [this locker] + [object marker] + [open].

How is を pronounced? Is it really wo?