Part I: The Present TenseUNIT 1:
Conjugation of Regular VerbsUNIT 2:
Ser and EstarUNIT 3:
HayUNIT4:
TenerUNIT 5:
The Personal aUNIT6:
A Dozen Highly Useful Irregular VerbsUNIT 7:
Saber and ConocerUNIT 8:
Stem- Changing VerbsUNIT 9:
Noteworthy InfinitivesUNIT 10:
Reflexive VerbsUNIT11: Gustar et al.UNIT 12:
The Present ProgressivePart II: The Past, Future, and Conditional TensesUNIT 1:
The Preterite TenseUNIT 2:
The Imperfect Tense (includes progressive mood)UNIT3:
The Future TenseUNIT4:
The Conditional TenseUNIT5:
The Present Perfect TenseUNIT6:
The Past Perfect TensePart III: The Imperative, Subjunctive, and Compound Tenses, and the Passive VoiceUNIT 1:
The ImperativeUNIT 2:
The Present SubjectiveUNIT 3:
The Imperfect SubjunctiveUNIT4:
The Future PerfectUNIT5:
The Conditional PerfectUNIT 6:
The Present Perfect SubjunctiveUNIT 7:
The Pluperfect SubjunctiveUNIT 8:
The Passive Voice