rend (something) into (something)
To rip, tear, or split something apart into smaller pieces. ("Rend" conjugates to either "rent" or, less commonly, "rended" in the past tense and past participle.) He rent the contract into shreds when he realized that he'd be losing out on nearly 30% of the profits. I took the loaf of bread and rended it into pieces to share amongst the other starving children.
rend something into something
to rip or tear something into something. (The past tense and past participle are rent.) The tailor rent the garment into shreds in his anger. The garment was rent into bits and pieces by the machine.