Is “can be” passive voice?

"Can be" + a past participle is a modal passive: "The form can be submitted online." "Can be" + an adjective or noun is active: "The process can be slow." Modal passives (can, could, may, might, must, should, would + be + participle) are common and often appropriate in rules and instructions.

Modal passives state what is possible, permitted or required without saying who does it: “Claims can be filed by phone,” “Receipts must be kept for seven years.” In a policy document that is usually exactly the right register; the rule applies to whoever is reading.

Switch to active when you address a specific reader: “You can file claims by phone.” Second-person active is shorter and clearer in instructions.

Three sentences, checked

Each example below was run through our engine (v1.0.0). Amber marks the passive construction; a dotted underline marks a “be + participle” that is an adjective, not a passive.

Passive
The form can be submitted online.
Be-passive: "can be submitted" — the subject receives the action and no one is named as doing it.
Active
The process can be slow in winter.
No “be + past participle” construction here, so the sentence is active.
Active
You can submit the form online.
No “be + past participle” construction here, so the sentence is active.

Related forms

See the full list of passive voice verbs and passive voice in all twelve tenses.

Questions people ask

Are all modal verbs + "be" + participle passive?
Yes: can be, could be, may be, might be, must be, shall be, should be, would be, ought to be, plus "have to be" and "need to be," all followed by a past participle, are passive constructions.
Is "can be" passive in "it can be done"?
Yes. "Done" is the past participle of "do." "It can be done" is passive; "We can do it" is the active equivalent.

Check your own sentence

0 words