The two types of guards are the point guard and the shooting guard, and the two different types of forwards are small forwards and power forwards.
Eggs and sperm
Two types. By saying there are two 'types' you are already stating that there are 2 differentthings and so the word 'different' isn't necessary.
low tide and high tide
Type 1 is more serious than type 2. In type 1, you have to inject insulin. In some cases you have to do that in type 2. In type 2, you can be cured by good eating habits and exercise. Type 1 is more...