The adjective ‘necessary’ is listed at B1 in the English Vocabulary Profile.
Which infinitives come after the adjective ‘necessary’.
1 NECESSARY TO MAKE 15198
With a focus on investment, films can help drive that change in Africa’s people, a change that is necessary to make the hundred-year leap, a change that will help create a prosperous Africa, an Africa that is dramatically better than it is today. (ted talk example)
2 NECESSARY TO ENSURE 10529
(VERY RELATED TO LAW!) the top 100 B1 marked in text inspector:
access, achieve, allow, apply, avoid, consider, continue, control, create, deliver, develop, gain, increase, install, manage, necessary, operate, perform, prevent, produce, protect, prove, provide, reach, reduce, remove, replace, succeed, support