2. then she moves to a coffee house to spend most of her time.
위의 to spend가 to 부정사의 형용사적 용법인가요? 부사적 용법인가요?

4. my plants must be watered. he said, i will pray for you. then, he went to jane and asked the same question. jane answered, i just wish this dry weather would continue so that the tiles may dry.
조동사 may 의 용법 중, 의무 인가요? 가능인가요?
감사합니다.