"time flies (when you are having fun)"
time passes very quickly
Related words and phrases:
Two colleagues are talking ...
Colleague 1: Can you believe that it has been a year already since the merger?
Colleague 2: Wow. We've been so busy and things have been going so successfully that it seems like only a couple of months. How time flies!
Two friends are talking at a party ...
Friend 1: It is about time we should think about heading home.
Friend 2: Already?
Friend 1: It is two-thirty in the morning.
Friend 2: Really? Time flies when you are having fun. Oh, well. I suppose you are right. Let's find our coats.
There is no gerund form for time flies.
1) ... we decided to be there with our boys. Time flies and we didn't want to miss out.
2) How time flies when you are in Love and having fun with your Soul-Mate.
3) Time flies! Where does it go? It simply passes us by.
4) How time flies! It is already the second anniversary of her demise.
5) ... the six years has been life-altering. Time flies. I've got married, I've become a father, bought a house ...
6) ... but it just goes to show how quickly time flies -- the Owls have been absent from the Premier League for 16 years now.
7) Time flies as you become engrossed in a good story, ...
8) I had no idea it was that day. I guess time flies.
9) You only have one life to live and time flies.
10) It's closing fast. As we get older, we find that time flies. That's the case here. It seems like yesterday I was just preparing ...
11) How time flies. In the cosmic reckoning, a quarter of a century is barely a hiccup.
12) Again, time flies by quickly during good times such as going for a picnic or going on a ...
13) ... my kids. I was very conscientious of time, because I knew that time flies by so fast. Before you know it, they all have a life of ...
14) Can you imagine! A whole year has just gone. Wow, time flies.
15) I can't believe it. How time flies! The journey's been like a blink of an eye.
16) How time flies! One year is gone, just like yesterday!
17) I can't believe it's been eight years already. Time flies.
18) How time flies. We're already hitting the half-way mark of Game of Thrones' season six.
19) ... when the stress levels really start to rocket for us, too. The time flies by in that last hour.
20) Time flies when you are having fun. I can't believe it's been 10 years.