Usage of "so" and "therefore"

[Nguyenngocoanh_178]

hi, can you show me the difference between SO and Therefore, However and But their usage, the position in a sentence, and the meaning of them? Thank you.

[Amin Hammam]

so and therfore are connectors that show a result and have the same meaning, but different in function; so is coordinating conjunction (connect two words, phrases or clauses at the compound sentences must take a comma before. Therfore is transitional word (link independent sentences or even paragraphs, must followed by a comma to show that it is not a part of the sentence.

but and however are connectors that show a contrast and have the same meaning also, but different in function; etc....