How do you patch drywall holes with puddy? the holes are 3 to 4 inches in diameter.?

Patching holes are easy,depending on wether the walls are smooth or texture,because i dont know which, I'll give answers to both.1st cut your drywall to squares. this makes it easier to make a tight patch. The tighter the joints means less chance of blisters or . 2nd you need to screw your new drywall to backing, for this use scrap wood ( dont use any thing less then a 1x2 because screws will crack the wood). The backing needs to be at least 2 inches above and below exsisting drywall . Put inch and a qaurter screws 1 inch above and below the hole, fastining the backing to the exsisting wall. Screw on new drywall. Now for the fun part. Use mesh tape, paper tape causes if you are a beginer. Prefill cracks by applying mud and wiping it tight. It should not take to long to tack up. Using a 10 inch knife, apply mud. Knife technic is simple, the closer the handle is to the wall helps you float, the farther the handle is away takes mud off. To prevent apply mud around outside of tape and inside. This will make the patch more flat. Be genorous because you can always sand. Sanding between coats makes for better preperation. For the second coat not as much mud is needed. Sand again. If it is a smooth wall put a third coat on and pull tight. This takes out pock marks and makes for a better patch. If the wall is texture, mask off anything you do not want over spray on. Most textures are orange peel or knock down. Use a spray can found in most paint sections of a hardware store. Hold can 12 to 18 inches from the wall and spray in circles. The spray comes out rapidly so do not hold the can in one spot to long because this will cause it to be blochy. If knock down, use a 10 inch knife and very lightly drag across the patch using the floating technic. Materials needed are; scrap sheet rock(DO NOT USE METAL PATCHES FOUND IN HARDWARE STORE, TO HARD TO FLOAT OUT), all purpose joint compound, mesh tape, pan, 6 inch knife, and a 10 inch knife. Happy taping!