how to make a repeat repeat for 100 seconds lua code example

Example 1: loop true childs roblox

for i,v in pairs(game.Players:GetChildren()) do
-- v is your player
end

Example 2: roblox repeat until

repeat
	spawnGoblin()
	currentGoblinCount = currentGoblinCount + 1
	print("Current goblin count: " .. currentGoblinCount)
until currentGoblinCount == 25