Question

does ka use singular ke sath hota hai ya plural ke sath​

Answer 1

Does is the root word

The word you are seeking must be do

Does and do cannot be counted.

Hence cannot come under the category of singular or plural

Answer 2

3rd form ke singular ke sath does ka use hota hai..,

for EX-

$(1).she \: does \: not \: go \: to \: school. \\ (2).why \: does \: shivam \: not \: particip\: \\ - ate \: in \: competetion. \\ (3). \ \: does \: he \: want \: to \: come.$

hope it will help you!!