“Be+現(xiàn)在分詞”以組成進行式時態(tài)(Continuous Tenses),如:
Tony's maid is washing his new car.
The children are playing in the field.
Samuel was eating when I came in.
We have been living here since 1959.
形式:
有不同的be動詞,基本上為:
am,is,are,was,were,been,being,be。
被動語態(tài):
被動語態(tài)的基本結構為be+done(Be動詞+動詞過去分詞)
一般現(xiàn)在時:am/is/are+done
一般過去時:was/were+done
一般將來時:will+be+done
現(xiàn)在進行時:am/is/are+being+done
過去進行時:was/were+being+done
現(xiàn)在完成時:have/has+been+done
過去完成時:had+been+done
一般構句:
代詞/專有名詞+be+普通名詞(如我們是親兄弟)
代詞+be+專有名詞(如我是愛麗絲)
代詞/專有名詞+be+物主代詞+普通名詞(如我是你的親姐妹)
當“be”要在祈使句中出現(xiàn)時,陳述句可借助助動詞“do”,否定句必須在前加上助動詞“don't”,如:
Don't be silly!
Do be obedient!
Be careful!
Don'tbe a fool!