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Your native language (PortuguΓͺs) quietly pushes you into specific English errors. Here are the ones to watch β and the fix for each. This is exactly how WordSlick coaches you, every day.
See my full report & start free βWhen to use a/an/the vs nothing is subtle and trips most learners.
Present perfect vs past simple, continuous vs simple β English aspect is fine-grained.
in/on/at and dependent prepositions (interested IN, good AT) are idiomatic.
WordSlick builds every daily lesson around your real mistakes, coaches your native-language interference, and lets you practise real conversations with instant correction.