From the Cambridge Dictionary
main: larger, more important, or having more influence than others of the same type src
major: more important, bigger, or more serious than others of the same type src
I understand the difference between them explained in a post. However, I don't really understand the difference in the following context.
There are three main verb tenses in English: present, past and future. The present, past and future tenses are divided into four aspects: the simple, progressive, perfect and perfect progressive.
There are 12 major verb tenses that English learners should know.
I guess it dose not imply that "main" is more import than "major" and vice versa.
Does it mean the "main" part is more general than the "major" part, as "present tense" is more general than "Present Continuous tense".
Is my understanding correct?
Another example, major film genres vs Main Film Genres. The latter is used by AMC while Ngram Viewer doesn't even have a hit of it.