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Lesson 7 – Persian Mistakes: Modal Verbs & Common Errors

1) Can / Could

❌ He can to swim very well.

✅ He can swim very well.

❌ Could you to help me?

✅ Could you help me?

❌ I can to play piano when I was young.

✅ I could play piano when I was young.


2) Should / Must / Have to

❌ You should to check your answers.

✅ You should check your answers.

❌ He must to finish the work today.

✅ He must finish the work today.

❌ I have to goes to the doctor.

✅ I have to go to the doctor.


3) Might / May / Must (Possibility & Certainty)

❌ She might goes to the party tonight.

✅ She might go to the party tonight.

❌ He may is late.

✅ He may be late.

❌ You must to be tired after work.

✅ You must be tired after work.


4) Common IELTS-style Mistakes

❌ He can speaks English very fluently.

✅ He can speak English very fluently.

❌ She should to have done it earlier.

✅ She should have done it earlier.

❌ They must studies for the exam.

✅ They must study for the exam.