Change the voice.
We shall be taking tea.

• Future continuous tense যুক্ত active voice কে passive voice এ রুপান্তর করার নিয়ম:
• Structure:
- Object এর subjective form + shall be being/will be being + verb এর past participle form + by + subject এর objective form.
- Active: We shall be taking tea.
- Passive: Tea will be being taken by us.
- এ বাক্যে Object হচ্ছে -  tea এবং এটি হবে এখন - subject
- যেহেতু বাক্যটি Future continuous tense এ রয়েছে, তাই সে অনুযায়ী Auxiliary Verb বসেছে - shall be being/will be being.
- মূল verb - take এর past participle form হচ্ছে - taken.
- এরপর বসবে by + Subject - We এর objective form- us.

• এ জাতীয় আরোও একটি উদাহরণ হচ্ছে -
- Active: They will be playing football.
- Passive: Football will be being played by them.

Source: Advanced Learners Communicative English Grammar & Composition By Chowdhury & Hossain