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