NOTES: How to form informal commands https://www.spanishdict.com/guide/affirmative-informal-tu-commands
More Notes: Video http://acceso.ku.edu/gramatica/unidad6/mandatos.shtml
https://beta.conjuguemos.com/verb/140
https://www.quia.com/quiz/2689768.html?AP_rand=1591222703
https://www.spanishdict.com/quizzes/65/affirmative-informal-tu-commands
https://www.spanishdict.com/quizzes/66/negative-informal-tu-commands
https://studyspanish.com/grammar/test/informcomm1
All other commands http://www.elmaeagles.com/gameobjects/sv9.html
http://www.trentu.ca/academic/modernlanguages/spanish/masarriba/commandforms.html
http://www.studyspanish.com/practice/informcomm1.htm
http://www.spanishdict.com/topics/practice/65
http://www.trinity.edu/mstroud/grammar/commands.htm
http://www.trinity.edu/mstroud/grammar/commands.htm
http://personal.colby.edu/~bknelson/SLC/commands_tu1.php
http://personal.colby.edu/~bknelson/SLC/commands_tu2.php
http://personal.colby.edu/~bknelson/SLC/commands_tu3.php
http://personal.colby.edu/~bknelson/SLC/commands_tu3.php
http://www.udel.edu/leipzig/Assistant/mandatoinfej2.htm
http://www.quia.com/quiz/925749.html