PRESENT SIMPLE
Practice
http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/simcon1.htm
http://www.englishtenseswithcartoons.com/test/present_simple_vs_present_continuous_2
http://esl.about.com/library/beginner/bl_bgpresorcont.htm
http://www.isabelperez.com/prs-prc.htm
http://www.isabelperez.com/presentne.htm
http://www.isabelperez.com/happy/tenses/exercises/present_6.htm
http://www.isabelperez.com/exer/presentmixer.htm
http://www.speakspeak.com/html/d3a001_grammar_beginners_present_simple_continuous.htm
http://www.englishexercises.org/makeagame/viewgame.asp?id=2332
PRESENT CONTINUOUS
Practice
http://www.isabelperez.com/happy/tenses/present_cont.htm
http://manuelbarbado2.blogspot.com/2008/11/unit-2-present-continuous-practice.html
http://www.englishclub.com/esl-quizzes/grammar-1-present-continuous.htm
http://home.earthlink.net/~eslstudent/grammar/verbs/present.html#progressive
PRESENT SIMPLE / CONTINUOUS
Adapted from https://dokumen.tips/documents/past-tense-and-past-continuous-verbs-kristi-reyes-level-6-esl.html?page=4
Practice
Present Simple / Continuous
http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/index.htm
http://esl.about.com/library/beginner/bl_bgpresorcont.htm
http://a4esl.org/q/h/vm/sp_or_pc.html
http://www.englishpage.com/verbpage/verbs1.htm
http://www.englishtenseswithcartoons.com/tenses/present_continuous
State Verbs
http://www.perfect-english-grammar.com/stative-verbs.html
http://www.eslall.com/learn_english_179.html
http://wps.prenhall.com/hss_fulwiler_collegeref_5/59/15174/3884566.cw/content/index.html
PAST SIMPLE
Irregular Verbs
http://www.dad.uncu.edu.ar/upload/irregular-verb-list.pdf
http://www.manythings.org/b/e/2315/
http://tu.tv/videos/esl-irregular-verbs-2
Practice
Irregular Verbs
http://www.esldesk.com/spelling/irregular-verbs
http://esl.fis.edu/grammar/verbs/5.htm
http://www.quia.com/cb/8111.html
http://www.manythings.org/wbg/verbs_past1-mw.html
http://grammar.ccc.commnet.edu/grammar/quizzes/cross/verbs.htm
http://www.macmillandictionary.com/verb_wheel/
http://myeslworld.blogspot.com.es/2010/01/flash-game-past-simple-irregular-verbs.html
Past Simple
http://www.eslgamesplus.com/past-simple-irregular-verbs-esl-grammar-interactive-activity-online/
http://esl.about.com/library/beginner/bl_bgpirreg.htm
http://grammar.ccc.commnet.edu/grammar/cgi-shl/par2_quiz.pl/irregular_quiz.htm
http://www.myenglishpages.com/site_php_files/grammar-exercise-simple-past.php#.Ur1ejfTuJu0
http://esl.about.com/library/beginner/bl_bgspast.htm
https://sites.google.com/site/easygrammar4kids/simple-past/simple-past
http://www.englishclub.com/grammar/verb-tenses_past_quiz.htm
http://www.englishclub.com/esl-games/grammar/jumbled-tenses-past-simple-1.htm
http://www.agendaweb.org/verbs/past_simple-exercises.html
http://www.esl-lounge.com/student/grammar/1g85-elementary-past-simple-multiple-choice-exercise.php
http://www.esl-lounge.com/student/grammar/1g24-past-simple-pos-neg-questions.php
PAST CONTINUOUS
Practice
http://www.englisch-hilfen.de/en/exercises/tenses/past_ progressive_statements.htm
http://www.englisch-hilfen.de/en/exercises/tenses/past_progressive_statements2.htm
http://www.englishclub.com/grammar/verb-tenses_past-continuous-quiz.htm
http://www.ego4u.com/en/cram-up/grammar/past-progressive
(Do the exercises on Past Progressive at the bottom)
PAST SIMPLE / CONTINUOUS
Practice
http://www.eslpartyland.com/quiz-center/sppp2.htm
http://www.learnenglishfeelgood.com/lefg3_pastcontinous1.html
http://a4esl.org/q/h/vm/pastpastcont.html
FUTURE TENSES
‘WILL’ / ‘BE GOING TO’ / PRESENT SIMPLE
/ PRESENT CONTINUOUS
Adapted from https://slideplayer.es/slide/15155632/
Practice
https://agendaweb.org/verbs/future-simple-exercises.html
https://continuingstudies.uvic.ca/elc/studyzone/330/grammar/fut1
https://test-english.com/grammar-points/b2/future-forms-expressing-future-time/
https://www.english-4u.de/en/tenses-exercises/future.htm
https://www.englisch-hilfen.de/en/exercises/tenses/future.htm
https://www.eltbase.com/154-future#1
https://www.englishexercises.org/makeagame/viewgame.asp?id=7229
https://teacherarantxa.com/2018/10/31/future-tenses-test/
https://english.lingolia.com/en/grammar/tense-comparison/future-tenses/exercises
Games
https://www.eslgamesplus.com/future-forms-review-spin/
https://www.mes-games.com/future1.php
https://wordwall.net/es/community/future-tenses