spawn
Prolific
Another word for "Happening Quickly" is "Speedily"!
Duplicate, reproduce, mimic.
quickly
quickly!
another word for run quickly is "speedy" Hope this anwsers your question. Please reply back!
quickly or rapidly.
Quickly, fast.
The plants in my garden grow quickly in the warm sunlight.
Another word for copy that starts with an "R" could be reproduce. Hope that helps.
rapid quickly :) Fast
increase your pace
to move quickly.