In the chandas (Veda) these gati and upasarga are employed indifferently after the verbal root, as well as before it.,
As.-- वायविन्द्रश्च सुन्वत आयातमुपनिष्कृतम् ॥ मक्ष्वित्था धिया नरा (Rig.I. 2. 6).
In this we have आयातमुप instead of उपायतम् 'vayu and thou Indra, ye heroes, come ye both quickly to the soma of the worshipper by this sincere prayer.',