Don't say if I was rich I would buy a carriage; say if I were rich.
Don't say if I am not mistaken you are in the wrong; say if I mistake
not.
Don't say who may you be; say who are you?
Don't say go lay down; say go lie down.
Don't say he is taller than me; say taller than I.
Don't say I shall call upon him; say I shall call on him.
Don't say I bought a new pair of shoes; say I bought a pair of new
shoes.
Don't say I had rather not; say I would rather not.
Don't say two spoonsful; say two spoonfuls.
* * * * *