锟斤拷锟斤拷1.as if/though+锟斤拷锟絑(y锟斤拷)+did/had done…锟斤拷锟斤拷……(锟斤拷示锟紽(xi锟斤拷n)锟节伙拷?q锟斤拷)锟斤拷?l锟斤拷i)锟斤拷锟斤拷r锟斤拷锟絕(gu锟斤拷)去锟絩(sh锟斤拷);锟斤拷示锟絕(gu锟斤拷)去锟斤拷锟斤拷r锟斤拷锟絕(gu锟斤拷)去锟斤拷蓵r(sh锟斤拷))[锟斤拷锟斤拷锟斤拷锟斤拷4]

锟斤拷锟斤拷2.锟斤拷B(t锟斤拷i)锟斤拷(d锟斤拷ng)锟絶+锟斤拷(d锟斤拷ng)锟絶锟斤拷锟斤拷式锟斤拷山Y(ji锟斤拷)锟斤拷(g锟斤拷u)锟斤拷锟矫凤拷

锟斤拷锟斤拷could have done "锟斤拷锟斤拷(l锟斤拷i)锟斤拷锟斤拷……"(锟斤拷示锟絕(gu锟斤拷)去锟絔(m锟斤拷i)锟叫岋拷(sh锟斤拷)锟紽(xi锟斤拷n)锟侥匡拷锟斤拷)锟斤拷

锟斤拷锟斤拷might have done"锟斤拷锟斤拷(l锟斤拷i)锟斤拷锟斤拷……;锟斤拷锟斤拷(l锟斤拷i)锟斤拷(y锟斤拷ng)該锟斤拷锟斤拷锟斤拷锟侥筹拷锟�"(锟斤拷(sh锟斤拷)锟紿锟絔(m锟斤拷i)锟叫發(f锟斤拷)锟斤拷;锟斤拷锟斤拷锟絧微锟斤拷責(z锟斤拷)锟斤拷锟絑(y锟斤拷)锟斤拷锟斤拷

锟斤拷锟斤拷should/ought to have done "锟斤拷锟斤拷(l锟斤拷i)該锟斤拷某锟斤拷"(锟斤拷锟斤拷(sh锟斤拷)锟紿未锟斤拷)

锟斤拷锟斤拷should not/ought not to have done "锟斤拷锟斤拷(l锟斤拷i)锟斤拷該锟斤拷"(锟斤拷(sh锟斤拷)锟紿锟絪锟斤拷锟絕(gu锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷責(z锟斤拷)锟斤拷锟絑(y锟斤拷)锟斤拷)

锟斤拷锟斤拷needn't have done "锟斤拷锟斤拷(l锟斤拷i)锟斤拷锟斤拷锟斤拷"(锟斤拷锟斤拷锟窖斤拷(j锟斤拷ng)锟斤拷锟絕(gu锟斤拷)锟斤拷)

锟斤拷锟斤拷would rather have done "锟斤拷(d锟斤拷ng)锟絩(sh锟斤拷)锟斤拷愿锟斤拷锟斤拷某锟斤拷"(锟斤拷(sh锟斤拷)锟紿锟絔(m锟斤拷i)锟斤拷锟斤拷锟絕(gu锟斤拷));锟斤拷式would rather not have done锟斤拷锟絖(d锟斤拷)锟洁反锟斤拷思锟斤拷锟斤拷锟竭讹拷锟叫憋拷示"锟斤拷锟�"之锟斤拷锟斤拷

       锟斤拷锟絇(gu锟斤拷n)锟斤拷锟絔锟斤拷

锟斤拷锟斤拷锟竭匡拷英锟絑(y锟斤拷)锟斤拷(f锟斤拷)锟斤拷(x锟斤拷)锟斤拷锟斤拷

       锟斤拷锟斤拷英锟絑(y锟斤拷)省锟皆撅拷锟絭锟斤拷

锟斤拷锟铰高匡拷锟結訊锟斤拷锟竭匡拷锟斤拷锟斤拷锟斤拷锟斤拷前锟斤拷(zh锟斤拷n)锟斤拷锟斤拷志愿锟斤拷锟�(b锟斤拷o)锟斤拷锟饺★拷锟�?j锟斤拷n)?sh锟斤拷)锟斤拷锟斤拷

锟竭匡拷锟絩(sh锟斤拷)锟絞锟斤拷锟斤拷全锟斤拷锟斤拷要锟斤拷(ji锟斤拷)锟絚(di锟斤拷n)

锟組锟斤拷"锟竭匡拷锟絎(w锟斤拷ng)"微锟脚癸拷锟斤拷號(h锟斤拷o)