formality - "Should" as formal IF


Can a phrase starting with "if" always be replaced with a phrase with a phrase starting with SHOULD? It doesn't seem like we can make a direct substitution. For example, we say



If he askED you to move to Italy, would you do it?



But



Should he ask you to move to Italy, would you do it?



Why is this, and what is the rule for the substitution?




Comments

Popular posts from this blog

verbs - "Baby is creeping" vs. "baby is crawling" in AmE

commas - Does this sentence have too many subjunctives?

grammatical number - Use of lone apostrophe for plural?

etymology - Where does the phrase "doctored" originate?

phrases - Somebody is gonna kiss the donkey

typography - When a dagger is used to indicate a note, must it come after an asterisk?

etymology - Origin of "s--t eating grin"