What is mother tongue influence (MTI) in English pronunciation?

By APTTI TEFL faculty · Updated 6 October 2026 · 2 min read

Mother tongue influence (MTI) is the effect of your first language on how you speak English: its sounds, stress, rhythm and intonation. Examples in India include merging /v/ and /w/, adding a vowel before 'sk' or 'st' ('iskool'), or replacing /z/ with 'j'. MTI is normal. Teachers aim to reduce the features that make speech hard to understand, not to erase accents.

What this means in practice

'Neutral accent' and 'MTI reduction' are common requirements in Indian BPO, aviation, hospitality and teaching jobs, so learners often ask teachers for help with them.

Common MTI features in India

/v/ and /w/ merged ('vest' and 'west' sound the same)
added vowels in clusters ('iskool', 'sakool')
/z/ said as 'j' ('jero'); /f/ said as 'ph' or 'p'
long and short vowels merged ('sit' and 'seat')
even syllable stress instead of English word stress

Intelligibility first

Focus on features that cause misunderstanding, such as word stress and key consonant contrasts. An Indian accent with clear stress and sounds is perfectly professional.

How teachers work on MTI

Diagnose with a short recorded reading, choose two or three priority features, use minimal pairs and mirror work, practise in phrases and sentences, then in real speaking tasks. Live classes help because correction is immediate.

MTI in job interviews and workplaces

Many Indian employers in customer service, aviation and hospitality test for clear, 'neutral' English. What they usually mean is intelligible pronunciation with correct word stress and few sound substitutions that confuse listeners. Teachers can help candidates by focusing on these specific features and on pace and clarity, rather than on imitating a foreign accent.

Practical next steps

Record the learner reading a short passage.
Identify two or three priority features.
Teach how the target sound or stress is made.
Practise with minimal pairs, then sentences.
Re-record after four weeks to compare.

ExampleA Live Phonetics trainee from Ahmedabad worked on /z/ versus 'j' and on word stress for four weeks. In her re-recording, 'zero' and 'present' (the verb) were now clear.

What to keep in mind

Never mock an accent. Focus on clarity and confidence; accent is part of identity.

Common follow-up questions

Can MTI be removed completely?

Usually not completely, and it does not need to be. Clear, intelligible speech is the realistic goal.

How long does it take to reduce MTI?

With regular practice, specific features can improve noticeably within weeks; overall change takes months.

Is an Indian accent a problem for teaching English?

No. A clear Indian accent is a professional accent. What matters is intelligibility: correct stress and key sounds.

Related course

Live Phonetics Course (Online Batches)

Phonetics taught live: a trainer models each sound, you practise aloud, and you get immediate correction on vowels, consonants, stress and intonation.

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