This video clearly explains the past, present, and future tenses for every single verb in Esperanto. This should be one of the first videos you watch if you're learning the language.
Alex Vaughn Miller explains how to conjugate verbs and use participles in Esperanto.
Alekso MILLER eksplikas kiel konjugacii verbojn kaj uzi participojn en Esperanto.
Here's the lesson about the I ending:
https://www.youtube.com/watch?v=cd0UZ0jkBuY
Here's the lesson about the U ending:
https://www.youtube.com/watch?v=8FV4_wFahk8
Here's the lesson about the US ending:
https://www.youtube.com/watch?v=ZTUxCdF2XsI
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Is this video lesson more helpful than reading a textbook? They do take lots of time, energy, and research to make so consider becoming a Patreon subscriber to support Alex in making even more of them.