Should in condition sentence

[qianruS779]

Hi instructors,

I would like to ask you a question about the usage of should in condition sentence. What is the difference from if-clause condition sentence? ¿Like if-clause condition sentence, does should in condition sentence have three types of conditions: future, unlikely event and event not occurred?

Thank you very much

Best, Song

[RonPurewal]

sorry, but i can't tell what you are asking.

...but this isn't the kind of query that belongs on this forum.

this is a GMAT forum. even if your question is relatively general in nature, it still needs to be a question about something used in a GMAT-related item (from an allowed source).

if you're asking about the entire scope of some grammatical construction, then...
...there's no way we can give a complete answer in a single forum post,
and, more importantly,
...you should be able to find the answers you need (without waiting!) by using google (or whatever other search engine) and reading the resulting pages.