Common English Errors by Vietnamese Speakers

CEFR B1-B2 • ESL • Tense aspect, plural markers, and the structural gaps from Vietnamese to English

Why Vietnamese-to-English has unique challenges

Vietnamese is an analytical language with no verb conjugation, no plural markers, no articles, and no subject-verb agreement. Tense is signaled by adverbs and context, not by verb forms. When you speak Vietnamese, you express most of what English requires in grammar through context alone. The transition to English asks you to add explicit grammatical machinery to every sentence — tense markers, plural -s, articles. This page covers the 25 most common Vietnamese-speaker English errors with side-by-side fixes.

Group 1: Tense markers (the biggest gap)

Vietnamese signals tense with words like "đã" (past), "đang" (continuous), "sẽ" (future). English signals tense with verb endings (-ed) and irregular forms.

"Yesterday I go to the office."
"Yesterday I went to the office." ('Yesterday' = past time → past tense.)
"Last week I send three emails."
"Last week I sent three emails." (Irregular past: send → sent.)
"Tomorrow I go to the meeting."
"Tomorrow I will go to the meeting" or "Tomorrow I am going to the meeting." (Future requires 'will' or present continuous.)
"I work here since 2020."
"I have worked here since 2020" or "I have been working here since 2020." (Present perfect for ongoing-from-past.)

Group 2: Plural -s missing

Vietnamese has no plural marker. English requires plural -s on countable nouns.

"I have three friend at the office."
"I have three friends at the office."
"There are many bug in the system."
"There are many bugs in the system."
"We hired five engineer."
"We hired five engineers."

Group 3: Articles ("a," "an," "the")

Vietnamese has no articles. English requires them for singular countable nouns.

"I am engineer at Acme."
"I am an engineer at Acme."
"She gave presentation yesterday."
"She gave a presentation yesterday."
"I went to library."
"I went to the library." (Specific library = 'the.')

Group 4: Subject-verb agreement

"He work in the engineering team."
"He works in the engineering team." (Third-person singular -s.)
"She have three meetings today."
"She has three meetings today." ('Has,' not 'have.')

Group 5: "There is/are"

"Have many people at the meeting." (Vietnamese: có nhiều người = there are many people)
"There are many people at the meeting." (Use 'there is/are' for existence.)
"In Hanoi have many cafes."
"In Hanoi there are many cafes."

Group 6: Question word order

"You go to the office today?"
"Are you going to the office today?" or "Did you go to the office today?" (Auxiliary verb required.)
"Why you cannot finish the report?"
"Why can you not finish the report?" or "Why can't you finish the report?"

Group 7: Word order — adjective placement

"It is a contract big and complex." (Vietnamese: hợp đồng lớn và phức tạp)
"It is a big and complex contract." (English: adjective BEFORE noun.)
"I bought a car red."
"I bought a red car."

Group 8: Modal-verb patterns

"You should to send the report."
"You should send the report." (Modals + base verb, no 'to.')
"He must does it himself."
"He must do it himself." (Modal + base verb form.)

Group 9: Pronouns (he/she/they)

Vietnamese has gender-neutral third-person pronouns ("nó," "anh ấy," "cô ấy") and extensive kinship terms. English has fewer options but requires gender consistency.

"My manager is very supportive. He gave me feedback yesterday." (when manager is female)
"My manager is very supportive. She gave me feedback yesterday." (Match pronoun to actual gender.)
"My family, they all work in healthcare."
"My family all work in healthcare" or "My family members all work in healthcare." (Avoid double-subject.)

Group 10: Compound nouns and possessives

"This is the report of Marina."
"This is Marina's report" (preferred) or "This is the report from Marina."
"The team office is on the third floor."
"The team's office is on the third floor" or "The team office is on the third floor." (Both work — possessive or compound noun.)

Hear all the corrections

"Yesterday I went to the office. I have three friends at the engineering team."
"I am an engineer at Acme. I have worked here since 2020."
"There are many cafes in Hanoi. She has three meetings today."
"Are you going to the meeting? You should send the report by Friday."
"It is a big and complex contract. This is Marina's report from yesterday."

Quick self-test

1. "Yesterday I go to the office."

Fix: "Yesterday I went to the office." 'Yesterday' requires past tense.

2. "I have three friend at the office."

Fix: "I have three friends at the office." Plural -s required after a number.

3. "I am engineer at Acme."

Fix: "I am an engineer at Acme." Singular countable noun → article required.

4. "He work in the engineering team."

Fix: "He works in the engineering team." Third-person singular -s.

5. "You go to the office today?"

Fix: "Are you going to the office today?" English questions need an auxiliary verb at the start.

Pronunciation notes for Vietnamese speakers

  • Final consonants: Vietnamese drops or weakens many final consonants. English requires you to fully pronounce them. Practice "stopped" not "stoppee," "called" not "callee," "students" with both /n/ and /ts/.
  • Consonant clusters: Vietnamese has few consonant clusters. English has many: "strict" (s-t-r-i-c-t), "splash," "twelfth." Practice slowly, then speed up.
  • "Th" sounds: Vietnamese has no /θ/ (think) or /ð/ (this). Common substitutions: /t/ for /θ/ and /d/ for /ð/.
  • Tone vs stress: Vietnamese is tonal (each word has 6 tones). English uses stress, not tone. Listen for which syllables get stress (loud/long) vs tone (pitch shift).
  • Vowel reduction: Vietnamese vowels stay clear in unstressed positions. English reduces unstressed vowels to schwa /ə/. "Information" = /ɪnfərˈmeɪʃən/, not /information/ with all clear vowels.
  • Word stress: English stress is unpredictable but consistent within a word. Listen and memorize the stress pattern of each new vocabulary word as you learn it.

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