YOU SAID:
I think I should go to bed.
INTO JAPANESE
私は寝るべきだと思います。
BACK INTO ENGLISH
i think i should go to bed
INTO JAPANESE
私は寝るべきだと思う
BACK INTO ENGLISH
i think i should sleep
INTO JAPANESE
寝るべきだと思う
BACK INTO ENGLISH
i think i should sleep
You've done this before, haven't you.