Diccionarios.com
Verbix--Spanish Verb Conjugator
Study Spanish.com
tutorials and interactive practice tests. Free version and
premium pay version available.
Spanish
Language Exercises - Juan Ramón de Arana (highly recommended
for self-check grammar exercises from beginning to advanced
levels)
Barbara
Kuczun Nelson's on-line grammar exercises
Spanish Grammar
Juan Manuel Soto Arriví
Flechas
Rojas: tons of links useful to students learning Spanish.
Mark McKay's ultra verb table (MS Excel format) a student of
mine created this handy-dandy tool. The main use is to clarify
the usage and meaning of each of the many verb tenses in Spanish.
To accomplish the goal, Mark has twisted some of the technical
terminology slightly, but I think that these minor infractions are
quite utilitarian in nature. If you want to understand what the
bewildering plethora of verb forms in your 501 Verbs book are for,
these charts are extremely helpful. In other words, the Super
Duper Verb List is designed to help with conjugations
(subject-verb agreement). This list is more useful for examining
the whole range of tenses and selecting which verb tense to use.
