How to Use "imperative" with Example Sentences

1. Of course , I can see the economic imperative for this .
2. Proprieties among sovereign countries come second to the imperative of survival .
3. The former , hypothetical type of imperative depends on a condition .
4. But this does not change the imperative of decarbonisation .
5. What is most vulnerable at this point is its first imperative : the unity of han china .