After getting to know what a lip sync is and finding a sample, I have decided to make my own lip sync pictures and redraw them together with the letters they could stand for.
Lip Sync sample
One of the photos I made
The final drawing with the mouth shapes and letters they stand for
The drawing I made of the mouth shapes will be very useful when making my stop motion animation as this is how many lip shapes I need to make in total for the character.