Other
Rocket Languages: Verbs in the Present Tense and Conjugations
This learning module explains how to understand infinitives forms of Spanish. Examples of present and past tense Spanish verbs, and other verb information, are provided. Audio and written examples are provided, along with English...
Khan Academy
Khan Academy: Managing Time With Tense and Aspect
Using what you've already learned about tense and aspect, use your time wizardry to make sense of these sentences.
Study Languages
Study Spanish: Preterite vs Imperfect Part I
This site is an introductory lesson to the preterite and imperfect past tenses. The regular conjugations of each are presented, with brief general rules for their use. This is a great introduction without getting bogged down in all the...