https://www.aprenderinglesrapidoyfacil.com/2012/09/26/el-presente-simple-en-ingles-explicacion-ejercicios/

 

https://agendaweb.org/verbs/present-simple.html

 

http://www.grammar.cl/Present/Simple.htm

 

http://www.englishpage.com/verbpage/simplepresent.html

 

https://www.ego4u.com/en/cram-up/tests/simple-present-1

 

 

 

 

 

 

 

 

 

 

 

https://www.curso-ingles.com/aprender/cursos/nivel-basico/verbs/verbs

 

https://www.englisch-hilfen.de/en/exercises_list/verbs.htm

 

https://agendaweb.org/verbs-exercises.html

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

https://idiomas.gcfglobal.org/es/curso/ingles/a2/wh-questions/

 

https://agendaweb.org/grammar/questions-wh-questions.html

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

https://www.ego4u.com/en/cram-up/grammar/auxiliary-verbs

 

http://www.learnenglishfeelgood.com/english-auxiliary-verbs3.html

 

http://www.myenglishpages.com/site_php_files/grammar-exercise-auxiliary-verbs.php

 

https://english.lingolia.com/en/grammar/verbs/auxiliary-verbs/exercises

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

http://www.myenglishpages.com/site_php_files/grammar-lesson-modals.php

 

 

http://www.perfect-english-grammar.com/modal-verbs.html

 

 

http://www.englisch-hilfen.de/en/grammar/hilfsverben2.htm

 

 

http://www.agendaweb.org/verbs/modals-exercises.html

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

http://www.englisch-hilfen.de/en/exercises/irregular_verbs/crossword_past_participle.htm

 

https://www.eslgamesplus.com/irregular-past-tense-esl-grammar-jeopardy-quiz-game/

 

http://www.englisch-hilfen.de/en/exercises/irregular_verbs/crossword_6_7.htm

 

http://www.letshavefunwithenglish.com/games/irregular_verbs/past_participles/index.html

 

https://agendaweb.org/verbs/past-participle.html