Collocations for enforce - verb

fully, properly, rigidly, rigorously, strictly, vigorously
The rules were strictly enforced.

legally

can/cannot, could/could not
The ban cannot be legally enforced.

be difficult to, be hard to, be impossible to | help (to)
a system of local inspectors to help enforce presidential decrees

seek to, take steps to
The government may take steps to enforce compliance with the new measures.

decline to, refuse to