Be or do?
The trickiest question in English: when do I use am/is/are and when do I use do/does?
In this lesson, you will learn...
be or do? Which auxiliary to use, and when.
The clue is the next word. Adjective and -ing → be. Verb → do.
Common mistakes. Do you tired? → Are you tired?
Do you remember?
A quick review of like / love / hate + -ing.
Which auxiliary?
Look at what comes after the subject. Adjective, noun or -ing → use be. Any other verb → use do. Tap a line to listen.
▶ Teacher Thais's voicebe or do?
Watch and listen, then try it yourself.
be or do?
Everything from the video, in one place. This is the mistake almost every learner makes.
| Use am / is / are | Use do / does | |
|---|---|---|
| With | adjectives, nouns, verb-ing | all other verbs |
| Question | Are you tired? | Do you like music? |
| Negative | She isn't a singer. | She doesn't sing. |
Pergunte-se: existe outro verbo na frase? Se sim → do/does. Se não → be.
Listen & echo
Play a sentence, then say it right away — copy the teacher's rhythm and melody, like an echo. Record yourself and compare.
Ouça uma vez e repita logo em seguida, imitando o ritmo e a “melodia” da frase — como um eco.
Can you write it right?
Play each sentence and type what you hear.
Choose the correct answer
Brilliant!
Now you know when to use be and when to use do — the mistake almost every learner makes!