YOU SAID:

my dog cannot place on a cot

INTO JAPANESE

私の犬はベッドの上に置くことができません

BACK INTO ENGLISH

My dog can't be put on the bed.

INTO JAPANESE

私の犬はベッドの上に置かれない。

BACK INTO ENGLISH

My dog is not placed on the bed.

INTO JAPANESE

私の犬はベッドの上に置かれていない。

BACK INTO ENGLISH

My dog is not on the bed.

INTO JAPANESE

私の犬はベッドの上にいません。

BACK INTO ENGLISH

My dog is not on the bed.