Here are sentences incorporating the greeting expressions to welcome someone you haven’t seen in a long time:

Casual Greetings

  1. “Long time no see!” – “Hey, long time no see! How have you been?”
  2. “It’s been ages!” – “Wow, it’s been ages! What have you been up to lately?”
  3. “Where have you been all this time?” – “I can’t believe it’s you! Where have you been all this time?”
  4. “I can’t believe how long it’s been!” – “I can’t believe how long it’s been since we last met. You look great!”
  5. “Wow, it’s so great to see you again!” – “Wow, it’s so great to see you again after all these years!”

Formal or Polite Greetings

  1. “It’s wonderful to see you after such a long time.” – “It’s truly wonderful to see you after such a long time. How are things going?”
  2. “I’ve been looking forward to seeing you again.” – “I’ve been looking forward to seeing you again ever since I heard you’d be here!”
  3. “What a pleasant surprise to see you!” – “What a pleasant surprise to see you here! How have you been?”
  4. “I’ve missed our time together.” – “I’ve really missed our time together. Let’s not let so much time pass before the next meeting.”
  5. “It’s been far too long since we last met.” – “It’s been far too long since we last met. Let’s catch up soon!”

Excited and Enthusiastic Greetings

  1. “Oh my gosh, look who it is!” – “Oh my gosh, look who it is! I can’t believe you’re here!”
  2. “I’ve missed you so much!” – “I’ve missed you so much! We have so much to talk about!”
  3. “I can’t believe we’re finally catching up!” – “I can’t believe we’re finally catching up after all this time!”
  4. “You haven’t changed a bit!” – “Wow, you haven’t changed a bit! You look just like I remember.”
  5. “This is such a nice surprise!” – “This is such a nice surprise! I’m so happy to see you.”

Friendly Compliments to Pair with Greetings

  1. “You look amazing! How have you been?” – “You look amazing! How have you been all these years?”
  2. “It’s like no time has passed at all!” – “Talking to you feels like no time has passed at all. You’re just the same!”
  3. “You’re just as I remember!” – “Wow, you’re just as I remember! It’s so good to reconnect.”
  4. “Seeing you just made my day!” – “Seeing you just made my day! Let’s sit and chat for a while.”
  5. “We have so much to catch up on!” – “I’m so glad we met today. We have so much to catch up on!”