Sometimes, I heard or saw sentences with “left”. For example:
A: How many windows are left?
B: There are two windows left.
I wonder what “left” is.
Is that the past participle of verb to “leave”? Are the above sentences passive voice?
Left with other verbs
A: How many tickets do you have left?
B: I have two tickets left.
I also wonder what “left” is here. Is that adverb?
How can we use and put “left” in a sentence for this meaning?
Should we always put” left” at the end of a sentence?
Would you explain it to me, please?