Yes, I have owned over 15 dogs. Most of them came as puppies and they all nipped. The only difference was how regularly and hard different puppies nipped.

Apparently, all puppies nip because they are curious and that is also the way they play. Another reason is that they may be teething.

If they were with their siblings, they would nip each other. With their thick fur, they can take the nips. But what your puppy does not know is that its nips can be very painful to your human skin.

When the puppies are growing up with their mother, they are taught not to nip too hard. The mother disciplines the ones who bite a little too hard. She stands up and walks away whenever that happens. That tells the offending pup that nipping too hard is not welcomed at all. The siblings who have been bitten would also yip to prevent further hard bites.

This means that you have 'teach' your puppy that nipping is not allowed. When it nips at you, you must say a firm 'no' and just stop playing with it. Put it into a playpen by itself. After a period of time, resume playing with it. If it nips again, repeat the process. Soon your puppy will learn to 'mouth' without nipping hard.