Verb

(head)

(auxiliary)

If I should be late, go without me.

Should you need extra blankets, you will find them in the closet.

* 1922 , (Margery Williams), (The Velveteen Rabbit)

It was a long weary time, for the Boy was too ill to play, and the little Rabbit found it rather dull with nothing to do all day long. But he snuggled down patiently, and looked forward to the time when the Boy should be well again, and they would go out in the garden amongst the flowers and the butterflies and play splendid games in the raspberry thicket like they used to.

(auxiliary) Be obliged to; have an obligation to; ought to;

You should brush your teeth every day.

What do I think? What should I think?

* {{quote-news

, date = 21 August 2012 , first = Ed , last = Pilkington , title = Death penalty on trial: should Reggie Clemons live or die? , newspaper = The Guardian , url = http://www.guardian.co.uk/world/2012/aug/21/death-penalty-trial-reggie-clemons?newsfeed=true , page = , passage = Next month, Clemons will be brought before a court presided over by a "special master", who will review the case one last time. The hearing will be unprecedented in its remit, but at its core will be a simple issue: should Reggie Clemons live or die? }}

* '>citation

(auxiliary) Will likely (become or do something);

You should be warm enough with that coat.

(modern) A variant of would.

* 1817 , Jane Austen, Northanger Abbey?

I should like to dine with him. I dare say he gives famous dinners.

* 1900 , , (The Wonderful Wizard of Oz)

"If our friends, the Scarecrow and the Tin Woodman, were only with us," said the Lion, "I should be quite happy."

* 1900 , L. Frank Baum , The Wonderful Wizard of Oz Chapter 23

"Your Silver Shoes will carry you over the desert," replied Glinda. "If you had known their power you could have gone back to your Aunt Em the very first day you came to this country." "But then I should not have had my wonderful brains!" cried the Scarecrow. "I might have passed my whole life in the farmer's cornfield."