1. She also takes the sick chilren outside in wheelchairs/ a wheelchair.

Question

2. She took the patient in a wheelchair.

3. She took the sick person in wheerchairs.

(Which expressio do I have to use? A singular form or a plular form:a wheelchair or wheelchairs? Are the expressions above grammatical?)

Answer 1

Wheelchair has to agree with the number of persons you are taking out.

children more than one - wheelchairs

patient = one - wheelchair.