'Make' and 'do' trip up learners because they don't translate one-to-one. Which fits: 'I need to ___ a decision'?

"Make a decision" is the fixed collocation English speakers use, meaning these two words are conventionally paired together even though the logic isn't obvious — you don't "do" a decision the way you do homework. Collocations like this aren't governed by grammar rules but by convention, which is exactly why they trip up learners translating word-for-word from another language.

"Do" pairs naturally with tasks and activities, as in "do homework" or "do the dishes," but not with "decision." "Take" pairs with certain nouns too, like "take a break," but not with "decision" in standard usage.

English collocations like make/do have no single logical rule behind them — they simply must be memorized in pairs, which is why advanced learners often study collocation lists specifically rather than trying to derive the correct pairing from grammar alone.