Passive modal verbs
$1.$ This dress can't be washed by you.
- S + can + (not) + be + V (Pii) + (by O).
$2.$ The wine should be opened by you about 3 hours before you use it.
- S + should + (not) + be + V (Pii) + (by O).
$3.$ Books may be kept for 3 weeks by members.
- S + may + (not) + be + V (Pii) +(by O).
$4.$ Passengers' tickets shouldn't be thrown away as they may be checked by inspectors during the journey.
$5.$ The car will have to be towed to the garage by us.
- S + have/ has + (not) + to + be + V (Pii) + (by O).
$6.$ Umbrellas and sticks must be left by visitors in the cloakroom.
$7.$ Those books should have been taken back to the library.
$8.$ The goods which customers have bought during the sale cannot be exchanged.
$9.$ This man mustn't be moved; he's too ill.
- S + must + (not) + be + V (Pii) + (by O).
$10.$ When they have widened this street, residents will be kept awake all night by the roar of the traffic.
- S + will + be + V (Pii).
$11.$ This skyscraper has to be pulled down when you have not complied with the town planning regulations.
$12.$ The accident ought to be reported to the police.
- S + ought to + be + V (Pii) + (by O).
$13.$ It must be dry-cleaned.
$14.$ After that they must be returned.
$15.$ He will have to be left here by you.
$III.$ Rewrite the sentence using modal verbs in passive.
$1.$ Children should be given a lot of love by parents.
- S + should + (not) + be + V (Pii) + (by O).