was deceiving, deceived, was lying to
I didn't deceive anyone.
Тогда я сказала, чтобы он не обманывал меня в главном.
Then I told him not to lie to me about what mattered most.
— Женщины на грани нервного срыва (1988)
Неужели Марк Александрович и меня, и вас обманывал?
Was Mark Alexandrovich deceiving both you and me?
— The Cranes Are Flying (1957)
I have never deceived you.