How can we see a virtual image when it cannot be obtained on a screen?

Answer:-  True, A virtual image cannot be taken on a screen.

                                      virtual images can see because the lens of our eye converge the rays into a real image and projected on our retina. ... Virtual images are formed by diverging lenses or by placing an object inside the focal length of a converging lens. The ray-tracing exercise is repeated for the case of a virtual image.