In the first place, you all have to pay a debt first.
"Is it the first time you've been here?" "Yes, it's my first visit."
They did not know what to do first.
Let's do this first of all.
First come, first served.
I'm leaving first.
What do you have the first period?
When was it that you first met her?
When did you see them first?
I'd like to have a girl the first time. Look, they say 'First a girl, then a boy' don't they?
Those two are blindly enraptured with each other right now but they say first meeting someone is the first step toward goodbye. I wonder if they're aware of that.