Can you put a couple of extra pencils in my backpack? If you put a couple of strawberries on top, the kids will gobble up the fruit salad! "Put a couple of signs around the neighborhood, and the yard...
The construction worker carefully put the finishing brick piece to complete the building project. OR, in another sense of "put": "He decided to put his answer in the most diplomatic way he could."
An angry bird scratched my arm! "An" is usually put it a sentence to tell you the noun next to it is singular. Usually if the noun starts with a vowel (A, E, I, O, U) you use "an" if not you use "a"....