A verb must not act as a subject directly. It must be a noun or an infinitus phrase, so that it can be regarded as a noun peer and used as a subject.
For example, see him makes me angry (x, see is a verb)
Seeing him makes me angry (O, seeing is a dynamic term)
To see him is my purpose of coming here.
1. Use nouns as the subject
A verb is used as the subject, usually to indicate known facts or experiences.
2. infinitus as the subject
When an infinitus is used as the subject, it usually indicates a willingness, purpose, or unfinished thing.
When an infinitus or noun phrase is used as the subject, it often forms a phenomenon where the subject is too large. Therefore, it is usually used as the subject and placed at the beginning of the sentence, and the true subject is moved to the end of the sentence. When a noun is moved to the end of a sentence, it is usually changed to an infinitus phrase.
