even if 即使 = even though 即使你知道这个秘密, 你也应该保持沉默。 Even if you know the secret you should keep silent.

翻译：即使我一晚不睡觉，我也会帮你。

I will help you even if I don’t sleep for a night.

1.You can go to the wedding, even if you don’t receive an invitation.

even if / even though 引导让步状语从句，从句中一般用现在时表示将来

e.g. Even if he ________walk all the way, he will get there.

has to