I - I DISCOVER A NEW LANGUAGE FUNCTION

Expressing possibility, ability, obligation, necessity, etc., with past forms of modals

1 CAN → COULD

Function: Past ability

We use 'could' to talk about something a person was able to do in the past.

📌 Example: In the past, many activists could speak in public to defend civil rights.

2 MAY → MIGHT

Function: Past possibility

We use 'might' to talk about something that was possible in the past, but we are not completely sure.

📌 Example: If people had protested earlier, they might have reduced racial discrimination sooner.

3 SHALL → SHOULD HAVE

Function: Past advice or duty not done

We use 'should have' to say that something was the right thing to do in the past, but it was not done.

📌 Example: Governments should have protected the rights of all citizens.

4 MUST → HAD TO

Function: Past obligation

We use 'had to' to express a strong obligation in the past.

📌 Example: Many civil rights leaders had to fight against unfair laws and racial segregation.

5 WILL → WOULD

Function: Past willingness or determination

We use 'would' to describe someone's determination or repeated action in the past.

📌 Example: Many activists would speak every day to encourage people to fight racism.

6 NEED → NEEDED TO

Function: Past necessity

We use 'needed to' to show that something was necessary in the past.

📌 Example: People needed to unite to defend equality and human dignity.

7 DARE → DARED TO

Function: Past courage

We use 'dared to' to show that someone had the courage to do something difficult or risky.

📌 Example: Some brave citizens dared to protest against racial discrimination.

💡 Remember: Past modals help us express ability, possibility, advice, obligation, determination, necessity, and courage in the past.

Lesson 2: BREAKING BARRIERS