so the correct form for the plural and genitive is w/o apostrophe.
yes, the correct form for the plural is GREs (though quite a few people do use an apostrophe... to me it looks funny without the apostrophe, but grammarians say you shouldn't use one)
no, the genitive DOES take an apostrophe --> <<GRE's creators>>
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and the apostrophe should be applied in abbreviations like "it's" = "it is"
yes, but we usually call that a "contraction" -- it's, can't, won't , etc.
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as i said...it is almost never used. like the character from Adams Family, cousin It. so he would make lots of little Its
so my p.s. may be a stupidity. i cancel it
Ohhhhhh hahaha
