Answer:
A sentence combing two words such as ice-cream, truck-driver, mother-in-law.
Explanation:
An example would be: The truck-driver had dropped his load of at his destination.
Also you did not provide sentences if that was what you were asking for.
That would be knowledge and research
Answer:
Chelsea winning a championship league then it goes downhill
Assuming you're referring to what you typed, it would be informal.
Random, but I remember reading this in middle school
