well before you can do either you need to know about pure charka, Pure Chakra is the normal chakra present in our body and we can use this to perform normal Ninjustu techniques and enhance taijutsu and weapons with it.To use elemental justu(basic5), Elemental chakra is needed but what we have is pure chakra. This is when Nature Manipulation comes in. Nature manipulation allows you to change the properties of your chakra to that of any of the basic 5 elements, so nature manipulates converts pure chakra to elemental chakra.
shape manipulation, It involves changing the form and movement of chakra, determining the size, range, and purpose of a technique. this is used for elemental justu mostly but can use pure charka. the lighting blade created by kakashi hatake is a good example of shape manipulation as he makes a chidori into a larger and thicker form of lighting charka. but the most well known and The ultimate example of shape manipulation is the Rasengan, invented by the Fourth Hokage, Minato Namikaze of course until naruto created the rasen shuruiken and made that the highest form possible by adding wind charka to the already complex rasengan.