The passive voice
Passive voice with modals
You can use modals in the passive voice in the present, future and past tenses:
- Present and future tenses: modal + ‘be’ + past participle
The program can be updated. (present)
The program will be updated. (future)
- Past tense: modal + have been + past participle
The program could have been updated.
More info
- Passive voice for present/future modals (Study and exam.com)
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Modal verbs (A guide to learning English)