Which
Cual
(always gets an article)
(lo, la, el, los, las)
While
Mientras (followed by a subjunctive)
Even though
Aunque (followed by a subjunctive)
But
Pero
If
Si
Because
Porque
Where
Donde
Then, well
Pues
When
Cuando
Even tho, In spite of
Aunque
Not even, Nor
Ni
“Or” used before letter “O”
U
“And” used before the letter “i” or “hi”
E
And
Y
Or
O
That, Than
Que
Who, Whom, Anyone
Quien
Which
Cual