hell yes! They should be able to perform ninja techniques because in the ninja academy they are tought ninja techniques such as basic clones, transformation techniques etc. yes they can but they focus on their byakugan. maximizing their gentle fist.-from chrisbeatzYes of course. It's just they have a Kekei Genkai more that the other cannot use.ofc,they are shinobis and can learn other techniques but they prefer jyuken because they specialize in it Shadow clone is a technique that theoretically anyone can learn. So yes, a Hyuga should be able to use shadow clones if he learns how.
Not to many ninja use them because they require a lot of chakra.