"كُنْتَ تَعتقدُ" - Translation from Arabic to English

• were you thinking
• you were thinking

Isn't it entirely possible that because you were thinking of cheating yourself, that you're just projecting your guilt onto her?
لَيسَ هو محتملَ كليَّاً الذي لأنك كُنْتَ تَعتقدُ غَشّ نفسك، بأنّك فقط تَسْليط ذنبكَ فيها؟

I still don't know what you were thinking.
أنا ما زِلتُ لا أَعْرفُ بأَنْك كُنْتَ تَعتقدُ.