Introduce your dog to the crate – You must ensure that you install the crate in a place where your dog can hear your voice to maintain that friendship between both of you. This place must also be where you regularly hold your conversations as a family. In the first instance, you can throw in some toys for your dog to learn to enter the crate before advancing with other enticers. Begin feeding your whippet in the crate – You can place its meals inside the far end of the crate so that your whippet enters it to take its meals. After it enters the crate, you can close it and let it stay inside it for some minutes after eating, gradually increasing the time it stays inside the crate.  Increase the time it stays in the crate – Eventually, begin increasing the hours it spends in the crate by throwing in some toys to play with. Try leaving where the crate is so that your whippet learns to adapt to your absence.  Crating your whippet for long hours – This will help you to restrain its motion. Start by letting it sleep through the night in the crate. This move will help it learn to stay in the box. Ensure that you interact with the dog more now to take away the separation anxiety. In this process, you must not give in to its whining since it will start doing this to evade being put in the crib.