If you speak Romanian, some English grammar rules will feel natural and others will feel confusing. These are the biggest differences to focus on first.
Romanian uses SVO order like English in most cases. The main difference is that Romanian postpositive articles — attached to the end of nouns — create patterns that have no English equivalent. Adjective placement also differs.
Romanian articles are unique in Romance languages — they are postpositive, meaning they attach to the END of the noun. 'Cartea' means 'the book' — 'carte' (book) + 'a' (the). English articles come BEFORE the noun.
Romanian has more verb conjugation patterns than English but fewer than some Romance languages. Romanian speakers generally find English verb forms simple once they understand the tense system.