curriculum/challenges/english/blocks/learn-how-to-use-modal-verbs/67d5a5fa6dbdc14fd6c078b8.md
This task doesn't have audio. Read the question below and select the correct answer.
Which sentence is grammatically correct?
What happen would if the system crashed?
The correct word order is What would happen....
Would what happen if the system crashed?
In a question, would comes after what, not before it.
What would happens if the system crashed?
Would is followed by the base form of the verb, so happens should be happen.
What would happen if the system crashed?
4
If wh- question (when, who, why, how) uses a modal verb, the modal verb comes before the subject. The main verb stays in its base form. For example:
What can you do to fix this? - Asking about possibilities.
Why should we start early? - Asking for advice.
How must we prepare? - Asking about requirements.
When will you finish? - Asking about future actions.
Where could I find help? - Asking about options.
This way, you're asking about what's possible, necessary, or expected.