Past, Present, Future and Conditional are common tenses in any language. Begin learning these forms. Use Vocabulix to memorize the various tenses online and free.
Maret, Amsterdam, Netherland: 'I found Vocabulix about 3 months ago. Now, my entire school class is using it, as well as friends and relatives. Gracias!'
'Another definition of learning: You suddenly understand something you've always understood, but in a different way.'