Common Sayings:
* Let's get this done.
* I'm so hungry now.
* You're not alone now.
* Don't give up now.
* It's all good now.
* Time to go home.
Motivational Phrases:
* Keep calm and carry on.
* Believe in yourself, always.
* Never give up on your dreams.
* You can do it, we believe.
* Think big, dream bigger.
Humorous Phrases:
* You're so funny, haha!
* I'm not sure, maybe.
* What's the point, anyway?
* That's so random, lol.
* I'm just kidding, chill.
Romantic Phrases:
* I love you, forever.
* I'm so lucky to have you.
* You are my soulmate.
* Forever and always, baby.
* Let's make some memories.
Other Popular Phrases:
* What's your favorite color?
* Are you feeling okay?
* I'm sorry, I'm late.
* Let's do this thing.
* I'm so excited, yeah!
This is just a small sample, of course. There are countless other four-word phrases in use, depending on context and personal preference.