imagine sb to be的sb什么时候用【宾格】什麽时候用【形容词性物主代词】?

imagine sb as和imagine sb to be imagine sb to be的sb什么时候用【宾格】什麽时候用【形容词性物主代词】? 关于imagine sb. doing 的sb.有imagine sb. doing sth和imagine sb. to be/as 这3个句型中的sb.都是可以是【宾格/形容词性物主代词】吗?怎麽用?好像还和什么主语宾语有关. imagine sb as和imagine sb to be有什么区别 I imagine sb.to be able to do sth.为什么这里是 to be able 的形式? imagine sb to do和 imagine sb doing有什么区别?例句：i can imagine him saying thatI had imagined her to be older than that 关于marry sb 与 be married to sb 的不同之处 be home to sb be surprised to sb? be happening to sb be dangerous to sb sb be prepared to be sth to sb be accountable to sb sb be honoured to be useful to sb还是for sb? be embarrassing to sb还是for sb? be important to sb还是for sb