With the 3 statements you give, the first is accurate. You could potentially use the next "I check out my email", which is probably a more colloquial technique, but the initial solution is definitely the most widely applied and recognized. The third is incorrect.
Within your case in poi
Before you decide to try to switch a completely new shingle, round the back corners by using a utility knife. This can make it less difficult for you to slide the shingle beneath the just one over and align it with those on possibly side. When you have it in place, lift the corners from the overlapp