It’s a smart idea to continue to keep an index of these exceptions. With practice, you’ll start to get a really feel for when to double up and when not to. Use apostrophes to affix two terms and to help make terms possessive. Apostrophes is usually complicated, and forever cause! https://dsl-learning69371.blogsidea.com/39209974/indicators-on-spelling-mistakes-by-dsl-you-should-know