Mother tongue influence in English: intelligibility, accent and authority

What is mother tongue influence?

Every language has its own inventory of sounds, its own rhythm and its own rules for stress. When you speak English, your brain maps English onto the sound system it already knows. The result is mother tongue influence, or MTI: particular vowels, consonants and patterns of emphasis that carry over from Hindi, Bengali, Tamil, Marathi or any other first language.

MTI is not a defect. Every speaker of a second language has it to some degree, and many highly effective international communicators speak with a clear accent.

Does my accent matter?

Less than most people fear, and more specifically than most courses teach. In an influential 1995 study, Murray Munro and Tracey Derwing showed that accentedness, comprehensibility and intelligibility are related but partly independent: listeners could rate speech as strongly accented yet still understand it fully. What damages communication is not the presence of an accent but specific features that cause words to be misheard or force the listener to work hard.

That is good news. It means training can target a short list of high-impact features rather than attempting to rebuild your voice.

Which features matter most for Indian speakers?

• Word stress. Stressing the wrong syllable (for example, in words like “development” or “photographer”) is one of the most common causes of misunderstanding for international listeners, because they identify words largely by their stress pattern.
• Rhythm. Many Indian languages give syllables roughly equal time, whereas English compresses unstressed syllables. Even rhythm can make speech sound rushed or flat, and important words stop standing out.
• Specific sound contrasts. The /v/–/w/ distinction, some vowel lengths (“ship” and “sheep”), and the retroflex quality of /t/ and /d/ are common MTI features. Some affect intelligibility; others only affect accent. A good assessor tells you which is which.
• Pace and pausing. Speaking fast to sound fluent often reduces clarity. Well-placed pauses signal structure and authority.

What does “accent neutralisation” actually mean?

Used carelessly, the phrase suggests removing all trace of where you are from. That is neither necessary nor, for most adults, realistic. Used properly, it means reducing the features that interfere with understanding and adjusting delivery so that listeners in any market follow you easily: clear stress, controlled pace, and confident emphasis. Research on English as an international language, notably Jennifer Jenkins’s work on the features that matter most for mutual intelligibility, supports exactly this targeted approach.

How is pronunciation trained effectively?

Start with diagnosis: a recording of your natural speech, analysed to find the features that actually cause difficulty. Then train those features in isolation, then in phrases, then in spontaneous speech, with feedback in the moment. Improvement that only appears when you read aloud has not yet transferred; the test is whether it survives an unscripted conversation.

Questions people ask

What is MTI in English?

Mother tongue influence (MTI) is the carry-over of sounds, rhythm and stress patterns from your first language into English.

Do I need to remove my accent to speak English professionally?

No. Research shows accent and intelligibility are partly independent. The aim is to fix the specific features that cause misunderstanding, such as word stress and rhythm.