It was as though the dogs were afraid of something.
- C'était comme si les chiens avaient peur de quelque chose.
He went on talking as though nothing had happened.
- Il continua de parler comme si de rien n'était.
He was smiling as if nothing had happened to him.
- Il souriait comme si rien ne lui était arrivé.
Brent is an American, but he speaks Japanese as if it were his mother tongue.
- Brent est Américain, mais il parle japonais comme si c'était sa langue maternelle.