Yes,it is technically proper grammar, of second generation in origin, however, alot of people misuse it in context.
Alice is pretty; however, Olivia is prettier.
give sentence using despotic
That is a sentence using the word troops.
However, the bell tower of the old church escaped destruction.
irrespective is one of word. this can be sentence
Pangaea is the first word in this sentence
There are various compounds in the environment. It is the sentence using compound word.
this is not an improper sentence.
The oceans of the world all have an abyssal plain at their deepest points.
If you will be kind, I can give you a cookie
This game lookes like we will never be able to win; however if we dont give up you never know what might happen.
IDIOT, that is a sentence !