I asked a question here: Some questions about Inversion sentences
Now, I know that certain negative-polarity adverbs with the main adverb are what triggers inversion, like "not only", "only when", "only after", "not until", and etc.
I just wonder what about sentences like below. The negative-polarity adverbs in them trigger inversion? or These sentences are fine? (I am sorry if this has been answered in my previous post. Because my English is not good enough to know if this has been answered or not. )
When he only eats chips, he gets fat.
When I only do simple things, I can concentrate.
When a man only thinks of himself, he loses his friends.