“Tickets are first come, first serve.”
Grammar Entry 654 / 1605 60-second read
First come, first serve vs. First come, first served
Past participle.
The comparisoni
“Tickets are first come, first served.”
The ruleii
¶
FIRST-COME, FIRST-SERVED.
The set phrase uses the past participle SERVED — "whoever comes first is served first."
Memory aidiii
Remember it like this
Add the -d.