present simple

http://www.englishexercises.org/makeagame/viewgame.asp?id=2829

present simple

http://www.englishexercises.org/makeagame/viewgame.asp?id=24

present simple

http://www.ego4u.com/en/cram-up/grammar/simple-present/form/exercises

going to/will, sentence transformation

http://www.flo-joe.co.uk/preliminaryenglish/grammar/will-or-going-to.htm

adjective formation

http://inglesnanet.com/grammar/suffix.htm

adjectives ending in ing or ed

http://esl.fis.edu/grammar/multi/eding.htm

going to-will

http://www.englishexercises.org/makeagame/viewgame.asp?id=2836

going to: question

http://www.eflnet.com/grammar/whquestionsbegoingto.php

going to:negative

http://www.eflnet.com/grammar/begoingtonegative.php

going to

http://www.eflnet.com/grammar/bgtverbagreement.php

Going to

http://www.learnenglish.be/gr1_prco_ex6.htm

Simple past: match the verbs with its past tenses

http://www.bradleys-english-school.com/online/jigword/jigpast5.html

Simple past: match the verbs with its past tenses

http://www.bradleys-english-school.com/online/concentration/past1.html

Simple Past: regular or irregular verbs

http://www.better-english.com/grammar/past5.htm

Past Simple : question

http://www.eflnet.com/grammar/yesnopast2.php

Past Simple: endings "d","ed","ied"

http://www.members.iinet.net.au/~adelegc/grammar/past_tense/past_regular.html

Test on Past Continuous

http://www.ego4u.com/en/cram-up/tests/past-progressive-2

Past continuous: negative form

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

Past Simple or Continuous?

http://baladre.info/english/sedaviwebfront/pastsimplecont2.htm

Past continuous

http://mrc.ltd.free.fr/PastContin.htm

Past Simple or Continuous?

http://www.montsemorales.com/gramatica/Pastsimpastcontin.htm

Past continuous

http://www.english-grammar-lessons.com/pastcontinuous/exercise3.swf

jobs: definitions

http://www.englishexercises.org/makeagame/viewgame.asp?id=787

jobs: definitions

http://www.oup.com/elt/global/products/happyearth/eagle/eagle2.1

jobs

http://www.englishexercises.org/makeagame/viewgame.asp?id=2493

jobs

http://www.citycol.com/esol/saccess/lang_systems/vocabulary/v-beg/dropmenu/jobs.htm

Adjectives with prepositions: explanation and exercise

http://grammar-quizzes.com/passive3b.html#preps

Adjectives with prepositions

http://www.redcamelot.com/camelot/exercises/SEPT26/Vocabulary/Prepositions/Exercise%202.htm

Adjectives with prepositions

http://www.redcamelot.com/camelot/exercises/SEPT26/Vocabulary/Prepositions/Exercise%201.htm

Adjectives with prepositions

http://www.english-4u.de/adj_prep_ex3.htm

Adverbs of frequency

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-8057.php

Adverbs of frequency

http://wwwedu.ge.ch/cptic/prospective/projets/anglais/exercises/freq1.htm

Adverbs of frequency

http://www.usingenglish.com/quizzes/35.html

Adverbs of frequency

http://www.miguelmllop.com/practice/beginners/grammar/frequencyadverbs1.htm

Adverbs of frequency

http://www.oup.com/elt/global/products/headway/elementary/a_grammar/unit04/hwy_elem_unit04_1/

Adverbs of frequency

http://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adverbs_of_frequency.htm

Future:going to/will

http://www.englishexercises.org/makeagame/viewgame.asp?id=2836

Past Continuous

http://web2.uvcs.uvic.ca/courses/elc/studyzone/330/grammar/pascon1.htm

Past Continuous

http://www.perfect-english-grammar.com/past-continuous-exercise-4.html

Past Continuous

http://www.english-grammar-lessons.com/pastcontinuous/exercise3.swf

Past Simple

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

Past Simple

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

Past Simple

http://www.learnenglishfeelgood.com/lefg2_simplepast2.html

Past Simple

http://www.bastrimbos.com/Hotpotatoesfiles/spastbev1.htm

Past Simple

http://www.tolearnenglish.com/exercises/exercise-english-1/exercise-english-989.php

Past Simple

http://www.bradleys-english-school.com/online/jigword/jigpast1.html