Hi,
1. I've got my doubts. I'm not sure that is correct.
2. I could have sworn I told you to take the next right. I'm almost sure I told you to . . .
what do this sentences mean? ( in #2, "I could have sworn" could mean something like.." I regret now that I didn't swer something in the past??')
In 'I swear that I told you the truth', I swear means