1. She has been nominated for the Best Actress five times but she has never won once .
⇒ in spite of being nominated for Best Actress five times,she has never won one .
2. This is the first role. His acting is excellent .
⇒ this is his first role. Nevertheless, his acting is very excellent .
3. It snowed heavily, so we could'nt arrive home early .
⇒ The snow was so heavily that we couldn’t arrive home early .