to stop trusting someone
誰かに対する信頼を失う (dareka ni taisuru shinrai o ushinau)
"After what he did, I’ve completely lost faith in him."
"彼がしたことの後、私は完全に彼に対する信頼を失いました。" (kare ga shita koto no ato, watashi wa kanzen ni kare ni taisuru shinrai o ushinai mashita)
A very complex or unsolvable problem.
exactly what is needed or wanted
permission to start or go ahead with something
to complete a task or promise as planned
people with power or influence who can help you
to schedule or confirm something in writing