Yeah, you're thinking of the conditional, which is totally different from the subjunctive, but has the same sort of endings. Great summary btw for the subjunctive, Wes. Rep for you later...
The major difference is that conditional endings are added on to the full verb infinitive, whereas the imperfect endings are added to the stem of the verb (ie without its -er/-ir/-re ending)
The conditional is the same as 'would' in English. It describes what would happen on the CONDITION of something else - hypothetically speaking. 'I WOULD like that' (if it happened). 'She WOULD go into town' (if she had any money).
Example - 'parler' Imperfect: (used to speak/spoke/was speaking)
Conditional: (would speak)
The imperfect has the stem 'parl' + ending. The conditional uses the full infinitive 'parler' + ending. So a GENERAL rule, is that if you can see the infinitive in a word, which includes an R, then it's conditional (or future).