If you speak Swahili, some English grammar rules will feel natural and others will feel confusing. These are the biggest differences to focus on first.
Swahili uses SVO like English, which makes basic sentence structure familiar. However, Swahili verbs contain the subject and often the tense and object as prefixes — one Swahili verb can be an entire English sentence.
Swahili has no articles. Definiteness is shown through context and the noun class system. English articles must be learned as a new grammatical category.
Swahili verbs are highly agglutinative — they take prefixes for subject agreement, tense, and object. 'Nitakupenda' means 'I will love you' — all of this information is packed into one verb. English spreads these across multiple words.