RonPurewal Wrote:thanghnvn Wrote:if I learned English, I got good score on gmat
you would use these tenses to describe actual sequences of observations from the past. this is a bit weird in this context, because "learned english" is not really something that you can do in some cases but not in others.
here's an example that works better with these tenses:
if students in soviet russia showed mathematical or scientific aptitude, they were placed in specialized educational tracks from a very young age.--> this sentence relates actual past observations. if students showed these kinds of aptitude, they were placed in the programs; if they didn't, they probably weren't.
if I learned English, I would get good score on gmat.
this tense combination does not relate actual observations; it's hypothetical. in the context of the sentence, you don't actually know english yet, and are hypothesizing about the consequences of learning it if you decide to do so.
Thank you Ron, I want to come back this problem because some book say that "if do, do" is a conditional sentence. Possibly, those books are not suitable with gmat standard.
Please, tell me "if did, did" , "if students showED scientific aptitude, they WERE placed in specialize educational track" is used ONLY TO SHOW PAST OBSERVATION, or is used to show past observation OR conditional.
second point,
whether the pattern " if students SHOW scientific aptitude, they ARE placed in specialized educational track" , "if do,...do" exist or not. (present tense).
if that pattern exist, How dose the pattern is used? pls, explain/give example.
Thank you, Ron.