📒 used to say that something is necessary or very important (sometimes involving a rule or a law)
📒 used to say that something is likely or logical
📒 used to recommend that somebody does something because you think it is a good idea
📒 used to say that somebody may do something but you do not really want them to
📒 used to tell people that something is so good or interesting that they should see, read, get it, etc.
📒 in certain situations it is necessary for you to do something that you do not like or enjoy