imagine

1.You can imagine how happy I was to receive your letter和You cannot imagine how happy I was to receive your letter在字面上看来当然是相反的，可是两句都说自己接到了对方的信很快乐。

2.imagine的宾语的后面有时接表语。例如：The little girl sometimes imagines herself a bird. We imagine her grievance a trivial one. 和Can you imagine that old man fighting with a tiger?