can.may.must.shall 等助動詞

標題這些助動詞

想知道

它們之間強調%數的關係

就像是

100%一定

50%may

這樣子

Update:

有其他相關的助動詞

也麻煩補充一下

1 Answer

Rating
  • 1 decade ago
    Favorite Answer

    Can ( 100% ):

    You use it to ask someone's ability of doing something. Do not use it for asking for permissions.

    ex. Can you type?

    May ( 50% ) :

    Please use this to ask for permission.

    ex. May you type this page for me?

    Must ( 100% ):

    It means "have to" but its tone and emphasis are stronger than "have to"

    ex. I have to go home. ( I want to go home, but if I didn't go home, my parents may or may not ground me. )

    ex. I must go home. ( I may or may not want to go home, but if I didn't go home now, my parents would ground me for sure. )

    Shall ( 80% - 100% ) :

    It means "will", as the future tense usage of "should".

    When you make a suggestion to do something in the future, either "near future" or a "far far far away future".

    ex. Shall we dance? ( it suggests that we should dance and we will dance together. )

    It is usually used to compare with "should"

    Should ( 50%):

    It means "maybe"

    ex. Should we dance? ( maybe it is a good idea that we dance or maybe it is not. It is really up to you. )

Still have questions? Get your answers by asking now.