急,在线等~~写出动词的四种形式
问题描述：
急,在线等~~写出动词的四种形式
写出动词的四种形态（单数第三人称,现在分词,过去式和过去分词）
1.cost 2.see 3.pay 4.copy 5.know 6.spit 7.rush 8.begin 9.come 10.buy 11.offer 12.choose 13.find 14.ride 15.take 16.wake 17.hear 18.wear 19.give 20.spend
答
1.costs costing cost cost2.sees seeing saw seen3.pays paying paid paid 4.copies copying copied copied 5.knows knowing knew known6.spits spitting spat spat7.rushes rushing rushed rushed8.begins beginni...