Hello Pieanne
I also once queried this issue here. I tried to look for the archive using 'Search in Forum' but in vain. I think it's not so bad to repeat the same discussion with you and moderators.
First of all, I'd like to present you the result of a tentative google survey.
(1) "It is/It's a long time since I have/I've seen you" 199 [UK 46]
(2) "It is/It's a long time since I saw you" 68 [UK 18]
(3) "It has/It's been a long time since I have/I've seen you" 2871 [UK 141]
(4) "It has/It's been a long time since I saw you" 946 [UK 44]
(5) "It was a long time since I saw you" 9
(6) "It was a long time since I had seen you" 1
You can see type #3 is now the most popular usage in AmE as well as in BrE.
Historically, however, #2 seems to be the first appeared and most often used structure. OED indeed gives an explanation only to this structure, though it doesn't say other structures are vulgar.
[
1535] It is now five and forty years since Lord spoke this unto Moses.
[
1557] There are yet but twelve days since I went up to Jerusalem.
[
1601] How long is it, Count, since the Physitian at your fathers died?
[
1661] It is so long since I learnt it, that I have forgot a part of it.
[
1711] Nor is it so very long since Richard the Third set up half the backs of the nation.
[
1753] Tis an age since I saw you.
[
1780] It is now above four years since I became the wife of a gentleman.
[
1825] It is long since the kites have had such a banquet.
[
1883] It is just a fortnight since Mr. Gladstone embarked.
1. "It's been a long time since we met"
2. "It's a long time since we met"
I think both are right, but I don't know why 2. is right. Could someone please explain? |
|
The conjunction "since X-event" seems to have two functions. The first one is to make a time adverbial clause meaning "all the time from X-event to now". This was originally expressed as "
ever since X-event" (EX: I have been a male ever since I was born. ^_^). The second is to make a noun clause meaning "the duration from X-event to now". The usage in this sense is now rare but the traditional structure of #2 can be interpreted as its remnant. This is my personal opinion.
paco