Simple past

http://www.perfect-english-grammar.com/past-simple-exercise-7.html

http://www.englisch-hilfen.de/en/exercises/tenses/simple_past_mix.htm

http://www.perfect-english-grammar.com/irregular-verbs-exercise-1.html

http://www.perfect-english-grammar.com/irregular-verbs-exercise-2.html

2nd Conditional

1st and 2nd conditionals

http://www.englisch-hilfen.de/en/exercises/if_clauses/multiple_choice.htm

http://www.englisch-hilfen.de/en/exercises/if_clauses/mix.htm

http://www.englisch-hilfen.de/en/exercises/if_clauses/mix2.htm

Present continuous

http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/pcont1.htm

http://www.perfect-english-grammar.com/present-continuous-exercise-6.html

http://www.ecenglish.com/learnenglish/lessons/present-continuous-review

http://www.kico4u.de/english/uebungen/5klasse/presprofrag.htm

Simple past

http://www.agendaweb.org/exercises/verbs/irregular-past-1.htm

http://www.englisch-hilfen.de/en/exercises/tenses/simple_past_mix.htm

http://www.myenglishpages.com/site_php_files/grammar-exercise-simple-past.php

Simple Past Vs Past Continuous

http://www.perfect-english-grammar.com/past-simple-past-continuous-exercise-1.html

http://www.vitutor.com/gramatica_inglesa/verb_tense/simple_past_ej13.html

http://www.englishpage.com/verbpage/verbs3.htm

Simple Present II

http://www.englishexercises.org/makeagame/viewgame.asp?id=1555

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

http://www.english-4u.de/present_ex1.htm

http://www.englishpage.com/verbpage/verbs1.htm

Clothes NEFPI

Prepositions NEFPI

Irregular Verbs