Tom couldn't rule out the possibility that someone had lit his house on fire. ✬

Tom couldn't rule out the possibility that Mary didn't like him. ✬

Tom couldn't rule out the possibility that he was mistaken. ✬

Tom couldn't completely rule out the possibility that what Mary said was true. ✬

Tom couldn't completely rule out the possibility that Mary had killed herself. ✬

Tom couldn't completely rule out the possibility that he was going to get drafted. ✬

Tom couldn't completely rule out the possibility that he might be laid off from work. ✬

We can't rule out anything yet. ✬

I can't rule out that possibility. ✬

Tom couldn't completely rule out the possibility Mary had killed herself. ✬