The informal expression "How come" meaning "Why?" is of Yiddish origin. It is related to the formal, rather prosecutorial phrase "how comes it that..." They would be likely to occur together only in...
No, you don't need an apostrophe in for years to come. Years is plural in that sentence, not possessive. (Apostrophes are not used to make words plural.)
You come is the second person present simple conjugation of "come".You have come is the second present perfect conjugation of "come".Singular and plural forms are the same in second person...
The entire plant doesn't die when its growing season is over. You may not see any evidence of a living plant above the soil, but its root system is still alive and ready to send up shoots when the...