Answer:present perfect tense
Explanation:
Feudalism helped protect communities from the violence and warfare that broke out after the fall of Rome and the collapse of strong central government in Western Europe. Feudalism secured Western Europe's society and kept out powerful invaders. Feudalism helped restore trade. Lords repaired bridges and roads.
Answer:
I'm not sure sorry I can't help
Hey mate!
In grammar, modifier is an optional element in clause structure or phrase structure.
For example, This is a red carpet...Here red is a modifier which is modifieing the carpet.
hope it helps!