David

The Subjunctive in Adverbial Clauses

Certain adverbial expressions, such as "Ojala" and "a menos que," require the use of the subjunctive. This section will deal with the use of the present subjunctive in these circumstances.
This website shows how to use the subjunctive in adverbial clauses, and it comes with a brief review at the end: http://www.bowdoin.edu/~eyepes/newgr/subj5.htm

If you need to learn how to use the subjunctive in adverbial clauses, you can’t go wrong here. This site offers and extremely in-depth review of the various clauses in which the subjunctive should be used: http://users.ipfw.edu/jehle/courses/subjadv.htm
 
To test your skills at applying the subjunctive, go to this website. It contains practice grammar questions on whether or not to use the subjunctive in various clauses:
http://www.trinity.edu/mstroud/grammar/subjd.htm

These websites are again excellent websites learn how to use the subjunctive in adverbial clauses, as well as practice. Choose the correct answer from the options. This is excellent practice because it will explain why the correct choice is correct.
http://www.colby.edu/~bknelson/SLC/subj_adv1.php
http://www.colby.edu/~bknelson/SLC/subj_adv2.php

If you’re feeling confident about your use of the subjunctive, have a little fun! These websites contain various games to test your knowledge of the subjunctive in adverbial clauses. Instruct ions on how to play are provided.
http://quizlet.com/1942523/intermediate-spanish-subjunctive-in-adverbial-clauses-flash-cards/
http://quizlet.com/1583444/subjunctive-in-adverbial-clauses-part-2-flash-cards/
http://quizlet.com/1583365/subjunctive-in-adverbial-clauses-flash-cards/