Fragments & Run-ons

after	since	when
although	so that	whenever
as	supposing	where
because	than	whereas
before	that	wherever
but that	though	whether
if	though	which
in order that	till	while
lest	unless	who
no matter	until	why
how	what	even though

A RUN-ON SENTENCE (sometimes called a "fused sentence") has at least two parts, either one of which can stand by itself (in other words, two independent clauses), but the two parts have been smooshed together instead of being properly connected.