YOU SAID:
I have a cat which always sleeps under the couch.
INTO JAPANESE
ソファの下でいつも眠る猫がいます。
BACK INTO ENGLISH
There is a cat that always sleeps under the sofa.
INTO JAPANESE
ソファの下でいつも眠る猫がいます。
BACK INTO ENGLISH
There is a cat that always sleeps under the sofa.
That didn't even make that much sense in English.