These conjugations are irregular. It'd be really helpful to see them in the Tips & notes section.
Thank you. It's not just for me. I'm only making all these suggestions to make it easier for all users. I want more people to be able to re-learn/learn Welsh like I am.
Yes, of course and we're happy to respond to suggestions to improve the course. Pob hwyl gyda'r Gymraeg :-)
Conjugation tables for nearly all verbs are also shown in the on-line dictionary at www.gweiadur.com (free registration) - some of them are the more formal forms, but the colloquial forms are often indicated as well.
(What they show as the imperfect tense is what is used colloquially for the conditional tense. Ignore the pluperfect and the subjunctives.)
It is also useful to make up your own set of conjugation tables for easy reference and learning, especially if you want to familiarise yourself with the versions used in your own local area.