Change the following from active to passive: The team will be revising the algorithms during the workshop.

Correct — D. The active verb is will be revising: will be + -ing, the future continuous.

The passive keeps that tense and puts being before the past participle:
will be revising → will be being revised

The object, the algorithms, becomes the subject: "The algorithms will be being revised during the workshop" → option (d).

Why the others are wrong

• (a)
  The algorithms were being revised during the workshop. — were being revised is the past continuous passive. The active will be revising points to the future, so were changes the tense.
• (b)
  The algorithms will be been revised during the workshop. — will be been is not an English verb form. Been needs a form of have before it: will have been revised is the future perfect passive, a different tense.
• (c)
  The algorithms will be revised during the workshop. — will be revised is the simple future passive. Without being, the sense of an action in progress during the workshop — the continuous in will be revising — is lost.

In a voice change the tense stays fixed. The passive is a form of be in the active verb's tense, plus the past participle.

For a continuous tense, being comes before the past participle:
is revising → is being revised
was revising → was being revised
will be revising → will be being revised

Key facts

• Passive = be, in the tense of the active verb, + past participle.
• Future continuous passive: will be being + past participle (will be being revised).
• Future perfect passive: will have been + past participle (will have been revised).

Common traps

• Choosing will be revised because it sounds lighter, and losing the continuous tense
• Accepting will be been — been needs a form of have before it (has been, will have been)

No directly related past PYQ was found.