pick plant live see clean 过去式 将来时 正在进行时

pick-picked- will pick- be picking
plant-planted- will plant- be planting
live-lived-will live-be living
see-saw-will see- be seeing
clean-cleaned- will clean- be cleaning
再问： The workers made_______computers. A many B much
再答： A 可数名词复数用 many 不可数名词 用much