「The balance of payment is due one month prior to departure.」 I am not clear the sentence from my text book  ⇒「The balance of payment is due one month prior to departure.」 I think we need to put "by" before one month. otherwise, there is no connection with due and one.... Could you tell me the construction grammatically?
Oct 16, 2018 2:35 PM
Answers · 3
You don't need "by" because of the word "prior". It acts like a preposition. There is a slight difference in meaning using "by" and "prior". In using "by", it means you can have up to the last day to pay before you leave. "prior" means that you must pay earlier than the last day. "prior" = "before" "by" = "until"
October 16, 2018
"By" isn't needed here, but it is true that "by" is often used with "due" -- especially when saying that something is due at or before the end of some time period, or at or before some action. You might say the money is due BY the end of the week. Or BY the moment of departure. Or BY the time that you leave. It would be incorrect to say "the balance of payment is due the time of departure." You would need "by" in a case like that.
October 16, 2018
It is correct the way it is. Putting by before one month wouldn't make a lot of sense.
October 16, 2018
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