How should a tie look
Ties should always complement the wearer. Elaborate knots are flashy, flamboyant, and the polar opposite of understated style. Take a "less is more approach".
How should healthy poop look
Healthy stool is typically sausage-shaped and snake-like. It is easy to pass and remains intact when flushed.
How should blood pressure be taken
normal blood pressure is considered to be between 90/60mmHg and 120/80mmHg (this applies if it's measured at home or at a pharmacy, GP surgery or clinic).
Should have sentences in english
I should have gone to bed early (= I didn't go to bed early and now I'm tired). · I shouldn't have eaten so much cake! · You should.