English has many Subordinating Conjunctions:
after | although | as |
as if | as long as | as much as |
as soon as | as though | because |
before | by the time | even if |
even though | if | in order that |
in case | in the event that | lest |
now that | once | only |
only if | provided that | since |
so | supposing | that |
than | though | till |
unless | until | when |
whenever | where | whereas |
wherever | whether or not | while |