2
general::
Phrase(s): swear someone to something
to cause someone to take an oath pledging something, such as silence or secrecy, about something. • I swore Larry to secrecy, but he told anyway. • We were sworn to silence about the new product., Phrase(s): swear something to someone
to pledge or promise something to someone. • I had to swear my allegiance to the general before I could become one of his bodyguards. • We swore our loyalty to our country., Phrase(s): swear to something
to claim that what one says is absolutely true. • It is true. I swear to it. • I think I have remembered it all, but I couldn’t swear to it.
McGrawhill's American Idioms And Phrasal Verbs