carry的過去式和過去分詞是什么意思

　　Modern video cameras are light and easy to carry.

　　新型的攝像機很輕，容易攜帶。

　　Credit cards eliminate the need to carry a lot of cash.

　　有了信用卡就用不著攜帶很多現金。

　　The work will be carried out at a future date.

　　這項工作將來再做。