+1
I have just learned this construction, but I don't know it very well, it would be kind of you if you could help me, thanks a lot.

There + to be + no reason why + subject + should (not) + verb + object

May you give me an ex? And what is it means?

Please check if my sentence is correct for this construction:

There is no reason why I should stay here. (Because it is too late).
+1
Hi,

I have just learned this construction, but I don't know it very well, it would be kind of you if you could help me, thanks a lot.

There + to be + no reason why + subject + should (not) + verb + object

May you give me an ex? And what is it means?

Please check if my sentence is correct for this construction:

There is no reason why I should stay here. (Because it is too late).

This is OK. Commonly said.

Some people prefer 'There is no reason that I should say here'.

Clive
+1
There's no reason why she should be so angry.

(She is angry, but nothing that I observe can be the cause of her anger.)

There's no reason why you shouldn't try out for the team if you really want to.

(Nothing prevents you from trying out for the team if that's what you want to do.)

There's no reason why I should have to wait so long.

(I have to wait a long time, but I believe I should not have to wait so long.

I am somewhat indignant about being kept waiting.)

CJ
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Comments  
There + to be + no reason why + subject + should (not) + verb + object

We use this construction to mention some certain fact that we should or shouldn't do something.

Ex: There is no reason why I should come to her party. (She didn't invite me)

--> She didn't invite me so I shouldn't come to her party.

There's no reason why X I should = I shouldn't

There is no reason why I shouldn't go to school. (Today isn't Sunday)

--> Today isn't Sunday so I should go to school.

There's no reason why X I shouldn't = I should

Your sentence is correct:

There is no reason why I should stay here. (It is too late)

--> It is too late so I shouldn't stay here.

There is no reason why X I should = I shouldn't

Ought to, Must, Have to... may also be used instead of Should.
 CalifJim's reply was promoted to an answer.
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