About the only language with more flexibility is Mandarin Chinese.

That’s nonsense. Inflectional languages can modify the meaning of words in subtle ways by prepending prefixes or appending suffixes (often both), and this applies widely across the vocabulary. In place of that, English uses function words compounded with content words to form new terms, but these pairs are hard-defined. E.g. ‘get’ adopts different meanings if it’s ‘get on’, ‘get off’, ‘get up’, ‘get down’, ‘get in’, etc. But you can’t say something like ‘make in’ and expect it to have anywhere near the same shade of meaning as ‘get in’.