If you speak Vietnamese, some English grammar rules will feel natural and others will feel confusing. These are the biggest differences to focus on first.
Vietnamese uses SVO order like English, which is helpful. However, Vietnamese places adjectives after nouns and time expressions usually come at the beginning of the sentence. English puts adjectives before nouns and time expressions often at the end.
Vietnamese has no articles. Countable nouns use classifiers โ specific words that come before nouns based on their category. English uses articles 'a', 'an', and 'the' instead of classifiers.
Vietnamese verbs never conjugate. Tense is expressed entirely through time words like 'yesterday', 'tomorrow', and 'already'. English requires the verb itself to change form for past, present, and future.