Question

write 2 conditions under which work is to be done

Answer 1

work is in formulated format the product of force and displacement

so conditions can be

1) there should be some force that acts on a body

2) there should be some displacement in position of body due to the force acting on it

Answer 2

Condition 1
The object moves

Condition 2
Force must act on the object in the direction the object moves.