shiharaikigen o kakuninsuru.

I check the payment due date.

Breakdown of shiharaikigen o kakuninsuru.

• を: direct object particle
• 確認かくにんする: to check
• 支払期限しはらいきげん: a payment due date

Questions & Answers about shiharaikigen o kakuninsuru.

How do you read 支払期限を確認する?

It is read:

しはらいきげん を かくにんする

• 支払期限 = しはらいきげん
• を = o
• 確認する = かくにんする

A small note: even though を is written with the kana を, in modern Japanese it is pronounced basically the same as お.

What does 支払期限 break down into?

支払期限 is a compound noun made of:

• 支払 = payment
• 期限 = deadline / time limit

So together it means payment deadline or payment due date.

You can think of it as one noun phrase:
支払期限 = the payment deadline

Why is the particle を used here?