I could've sworn;

I could've sworn I swept up those lovebugs.
I could've sworn I didn't love you.
I could've sworn I did the dishes.
I could've sworn I had it so good.
I could've sworn those lane lines fit last time.
I could've sworn I'd understand.
I could've sworn I made cookies.
I could've sworn he was all right yesterday.
I could've sworn my laptop was here a second ago.
I could've sworn I knew what to do.
I could've sworn my cell phone was charged five minutes ago.