(I) HAVEN'T SEEN YOU IN A LONG TIME.
(I) haven't seen you in a long time.: translation
(I) haven't seen you in a long time.
Fig. an expression of greeting, often said as part of a series. •
Mary: Hi, Fred! Haven't seen you in a long time. Fred: Yeah. Long time no see.
•
Tom: Well, John. Is that you? I haven't seen you in a long time. John: Good to see you, Tom!