Modal Verbs (must/mustn't, should/shouldn't)

To give advice, opinion, or recommendation.

You _______________ try to lose weight.

• should

• must

For probability or expectations.

The coach _______________ be coming soon.

• should

• must

For probability or expectations.

They _______________ reach Japan by noon.

• should

• must

For obligations, duty, or correctness.

Baekhyun ______________ look after the dog with care.

• should

• must

He ______________ procrastinate too often.

• shouldn't

• mustn't

She _______________ eat too much.

• shouldn't

• mustn't

Should all of us queue up?

Yes, we _______________.

• should

• shouldn't

Should the authorities check on dirty food outlets?

Yes, they _______________.

• should

• shouldn't

Shouldn't we pluck the fruits now?

No, we _______________.

• should

• shouldn't

Shouldn't the school give a school holiday?

No, it _______________.

• should

• shouldn't