+ed的动词20个,+ing的动词20个,+s(或es)的动词20个,并找出原型,名词复 ...答:-ed的动词:watched,studied,detected,brushed,determined,listened,danced,answered,dropped,placed,decided,quested,described,acted,deposited,beloved,denoted,wanted,combed,climbed,demonstrated,deleted,underlined.done,seen,left,felt,taken,bought,would,could,sung,known,cut,put,-ing的动词:speaking,...
英语的八种常用时态的构成,重点。答:2.时间状语: always, usually, often, sometimes, every week (day, year, month…), once a week, on Sundays,3.基本结构:动词 原形 (如主语为第三人称单数,动词上要改为第三人称单数形式)4.否定形式:am/is/are+not;此时态的谓语动词若为行为动词,则在其前加don't,如主语为第三人称...