Welcome to this tutorial.
Today we're going to talk about the model Forbes shell and should.
Let's get started.
Remember the we use model verbs to show if we believe something is certain probable or possible or not.
Now we also use models to ask permission.
Make requests and offers etc..
Remember the model serves.
Fall into the category of auxiliary verbs which are also known as helping verbs.
Now it means that they are used together with a mean verb to give grammatical information and additional
meaning to a sentence nowadays.
The most common use of shell in everyday English is in questions that serve as offers or suggestions.
For example shall I shall we have a look at the examples below.
Shall I order some pizza.
Shall we go now.
It's getting late now you can use the model verb should a to give advice a recommendation or a suggestion.
For example I think you should study more B to express that a situation is likely to happen in the present
or in the future more like a prediction.
Have a look at the examples below.
Kelly should be at home by now.
You can stop by I ordered some t shirts 10 days ago.
These should come in mail this week
c to express an obligation.
However it's not as strong as must now it.
It's used instead of months to make rules orders or instructions sound more polite.
Have a look at the example below.
You should never lie to your parents D to say this something was expected in the past but didn't happen.
Now in this case we use should plus have plus past participle as in the example below.
I should have studied more but I was too lazy.