1. Modals are special verbs which have functions
according to their meanings. They must always be used with action
verbs which are placed immediately after them.
2. Must, have to, could, and should
are example of modals.
3. Modals are used to
- Show the necessity of an action
- Show obligation
- Express
a request
- Express advice
Now we can even judge more of the instances out here and surely for the future the necessary credentials would even proved to be much better. rephrasing sentences online
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