Help you memorize easily the 37 Yes/No Questions and 90 Important Vocabulary Easy Definitions In addition to helping you study your N-400 form, we will go over all 37 yes/no questions and the full vocabulary definitions with simple, easy-to-understand definitions. The officer will definitely ask you the yes/no questions during your interview, so it's very important that you study and fully understand the meaning of each question. They may even ask you to explain the meaning of some of the words in the vocabulary list. We’ve made sure the vocabulary definitions are short and straightforward, so I believe you won’t have any trouble memorizing them.