Brazilian learners often understand English grammar and vocabulary very well, but pronunciation can still create communication problems.
The reason is simple: many English sounds either do not exist in Portuguese or are pronounced very differently.
This guide covers the 20 pronunciation areas that usually cause the biggest difficulties for Brazilian students — along with practical tips and examples.

1. The TH Sounds (/θ/ and /ð/)
Examples:
- think → tink
- this → dis
- three → tree
These sounds do not exist in Portuguese.
The Two TH Sounds
It’s important to remember that English has TWO TH sounds. Yes – TWO!
Voiced and Voiceless
First let me explain the difference between the two types of sounds.
- A VOICELESS sound has NO voice vibration. The sound is produced in your mouth.
- A VOICELED sound uses your voice. The sound is produced in your throat.
For both sounds, place your tongue lightly between your teeth.
1. The Voiceless TH /θ/
Examples:
- think
- thank
- three
- teeth
This sound has NO voice vibration.
2. The Voiced TH /ð/
Examples:
- this
- that
- they
- mother
This sound USES your voice.
- /θ/ = no voice
- /ð/ = voice vibration
2. The English R
Examples:
- red
- right
- around
The English R is softer and produced farther back in the mouth than most Portuguese R sounds.
3. V vs W
Examples:
- vest / west
- vine / wine
- V = teeth touch the lip
- W = rounded lips
This contrast is extremely important in English.
4. Short and Long Vowel Sounds
Examples:
- ship / sheep
- live / leave
- full / fool
English vowel length changes meaning.
5. The /æ/ Sound
Examples:
- cat
- family
- black
Open your mouth more than you normally would in Portuguese.
6. The Schwa Sound (/ə/)
Examples:
- about
- banana
- support
The schwa is the relaxed sound found in unstressed syllables.
It is one of the keys to natural English rhythm.
7. Final Consonants
Examples:
- stop
- fast
- book
Avoid adding extra vowel sounds after final consonants.
8. ED Endings
There are three pronunciations:
- /t/
- /d/
- /ɪd/
Examples:
- worked
- played
- wanted
9. S Endings
Examples:
- cats
- dogs
- buses
The pronunciation changes depending on the final sound of the word.
10. The H Sound
Examples:
- house
- hotel
- happy
In English, H is pronounced with air.
11. CH vs SH
Examples:
- cheap / sheep
- chair / share
These sounds are similar, but not identical.
12. Word Stress
Examples:
- PREsent
- preSENT
Correct stress improves clarity dramatically.
13. Sentence Stress and Rhythm
English is stress-timed, which means important words receive more emphasis.
Example:
“I WANT to GO to the STORE.”
14. Linking Sounds
Examples:
- turn it off
- pick it up
Words connect naturally in spoken English.
15. Contractions and Reductions
Examples:
- gonna
- wanna
- gotta
These forms are extremely common in spoken English.
16. The Dark L
Examples:
- milk
- people
- full
The final L in English is usually deeper than in Portuguese.
17. American T Pronunciation
Examples:
- water
- city
- better
In American English, T often sounds similar to a soft D.
18. Intonation
English uses pitch changes to express:
- emotion
- certainty
- surprise
- politeness
19. Final M vs N
Examples:
- ram / ran
- team / teen
These sounds must remain distinct.
20. Natural English Melody
Fluent English depends on:
- rhythm
- stress
- connected speech
- intonation
Pronunciation is not only about individual sounds.
Final Tips for Brazilian Learners
To improve your pronunciation:
- listen actively
- imitate native speakers
- practice out loud
- record yourself
- focus on rhythm, not perfection
Clear pronunciation is much more important than having a “perfect accent.”