YOU SAID:

Where is my cat; he was mowing the lawn not long ago.

INTO JAPANESE

私の猫はどこにいるのか。彼は少し前に芝刈りをしていました。

BACK INTO ENGLISH

Where is my cat? He had mow the lawn a while ago.

INTO JAPANESE

私の猫はどこにいますか?彼は少し前に芝刈りをしていた。

BACK INTO ENGLISH

Where is my cat? He had mow the lawn a while ago.