Everything happens as if we didn’t know that deforestation is a huge problem.
She behaves as though she were not concerned by the fate of the planet.
They look as if they had been bewitched by the beauty of Guyana!
Voir la correction
▪ Unreal assumption about the present as if / as though + simple past ▪ Unreal assumption about the past as if / as though + past HAVE + V-en