①虚拟语气用于宾语从句
有arrange,command,demand,desire,insist,order,propose.request.require.suggest 等后面的宾语从句中,用“（should)+动词原形”
②…………用于表语从句
adxice,idea,order,demand,plan,proposal,suggestion,request等名词的表语从句和同位语从句,其谓语动词要用虚拟语气的“(should)+动词原形”
③…………用于同位语从句
在表示命令,建议,要求的名词,如suggestion,proposal,idea,plan,order,advice等后的同位语从句中用虚拟语气,谓语动词用“（should)+动词原形”
再问： 能不能举格式如suggest that sb (should) do sth等
再答： 基本上都是这种格式。时间不够啦，只能帮到这样子。 arrange that (should) do sth, command that sb (should) do sth, demand that sb (should) do sth, desire that sb (should) do sth, insist (作建议时）that sb (should) do sth, order that sb (should) do sth, propose that sb (should) do sth. request that sb (should) do sth. require that sb (should) do sth. suggest that sb (should) do sth
