YOU SAID:

can't put the toothpaste back in the tube

INTO JAPANESE

歯磨き粉をチューブに戻すことはできません

BACK INTO ENGLISH

Toothpaste cannot be returned to the tube

INTO JAPANESE

歯磨き粉はチューブに戻すことができません

BACK INTO ENGLISH

Toothpaste cannot be returned to the tube