left is used in various contexts. following sentences illustrate the various usages:
Go left, not right.
there is nothing left in the box
Ann left her daughter at the day care centre.
At the crossroad, she had to decide whether to turn left towards the mountains or right towards the coast.
The surveyor used specialized tools to measure and map the land accurately.
The horrific images in the movie left me feeling scared and disturbed.
The nonprofit organization provides resources and support for the indigent population in the community.
The injustice of the court's decision left the community outraged.
The adjective in the sentence 'you finally left and had a fun day' is left & fun.
The left bank of Paris has many artists.
Early. --> It describes how they left.
They have left the country and will not come back.
She turned left to go to the school. She is left-handed. He left his son at the age of 5.
Both are correct, in different context and with different sentence structure. For example: For this reason she left early; but This is the reason why she left early.
I have some left over bread.
I left it on the table. ------------->> <3
The reporter just left.
I left my armory in the tank.
exclamatory sentence is very useful. You left him there? Real Exclamatory.
Example sentence - The perspicuity of his argument left no doubt.