We have also added an option in which the system will ask only irregular tenses. In this way you can focus on the most difficult verbs of english.
Paul, London, England: 'I liked your linkbook, the one which links to various language schools. It is more fun to search the net this way, I prefer it over all these endless lists...'
'I am always willing to learn; although I do not always like being taught. -Winston Churchill'