Here are the simple past and past participle forms of the verbs in the lists:
Across:
brought, stuck, sang, ate, fed, shaken, sold, read, left, met, drew, drank, flew, stood, made
Down:
hurt, chose, been, taken, understood, sat, gone, heard, swum, written, went, paid, wined
2. • Across • Donw
• 3) simple past of BRING • 1)simple past of HURT
• 5) Simple past of STICK • 2)simple past of CHOOSE
• 8) simple past of SING • 3)past participle of BE
• 10) simple past of EAT • 4)past participle of TAKE
• 11) simple past of FEED • 6)simple past of UNDERSTAND
• 12) Past particeple of SHAKE • 7)simple past of SIT
• 16) Past participle of SELL • 9)past participle of GO
• 17) Past participle of READ • 13)simple past of HEAR
• 18) Simple past of LEAVE • 14)past participle of SWIN
• 20) Simple past of MEET • 15)past partciple of Write
• 21) Simple past of DRAW • 19)simple past of GO
• 24) Simple past of DRINK • 22)simple past of PAY
• 25) Simple past of FLY • 23)simple past of WINE
• 26) Past participle of STAND
• 27) past participle of MAKE