Obligation Modal Challenge

Froggy Jumps

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About this activity

Test your grasp of obligation modals.

Created by

KEREN EUNICE PEREZ MUNTO

El Salvador

Download the paper version to play

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#	Player	Accuracy	time
1	KEREN EUNICE PEREZ MUNTO October 25, 2025	% 80	02:00
2	DELMI CRISTABEL FLORES VELASQUEZ October 27, 2025	% 33	01:06
3	WALTER ANTONIO CABRERA SIBRIAN October 27, 2025	% 17	01:23
4	Marlon Edenilson Escobar Castro October 27, 2025	% 0	00:34

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Froggy Jumps Obligation Modal ChallengeOnline version Test your grasp of obligation modals. by KEREN EUNICE PEREZ MUNTO 1 Which sentence expresses external obligation most clearly? a We have to submit the form by Friday. b We ought to submit the form by Friday. c We must to submit the form by Friday. 2 Which phrase means advice rather than obligation? a You must study more. b You ought to study more. c You have to study more. 3 Which sentence expresses negative obligation (not required)? a You must come to the meeting. b You should not have to come to the meeting. c You don't have to come to the meeting. 4 Which modal expresses prohibition when used with 'mustn't'? a Mustn't b Must c Have to 5 Which sentence shows obligation with 'have to' but not 'must'? a She ought to wear a uniform. b She must wear a uniform. c She has to wear a uniform. 6 Which is the best example of external obligation in a contract? a You ought sign the contract. b You have to sign the contract. c You must to sign the contract.

Froggy Jumps

Obligation Modal ChallengeOnline version

Test your grasp of obligation modals.

by KEREN EUNICE PEREZ MUNTO

Which sentence expresses external obligation most clearly?

We have to submit the form by Friday.

We ought to submit the form by Friday.

We must to submit the form by Friday.

Which phrase means advice rather than obligation?

You must study more.

You ought to study more.

You have to study more.

Which sentence expresses negative obligation (not required)?

You must come to the meeting.

You should not have to come to the meeting.

You don't have to come to the meeting.

Which modal expresses prohibition when used with 'mustn't'?

Mustn't

Must

Have to

Which sentence shows obligation with 'have to' but not 'must'?

She ought to wear a uniform.

She must wear a uniform.

She has to wear a uniform.

Which is the best example of external obligation in a contract?

You ought sign the contract.

You have to sign the contract.

You must to sign the contract.

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Obligation Modal Challenge

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Obligation Modal ChallengeOnline version

by KEREN EUNICE PEREZ MUNTO

Which sentence expresses external obligation most clearly?

Which phrase means advice rather than obligation?

Which sentence expresses negative obligation (not required)?

Which modal expresses prohibition when used with 'mustn't'?

Which sentence shows obligation with 'have to' but not 'must'?

Which is the best example of external obligation in a contract?

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