tenses

1. http://www.englishpage.com/verbpage/verbtenseintro.html
2. http://www.englishclub.com/grammar/verb-tenses.htm
3. http://www.englisch-hilfen.de/en/grammar_list/zeitformen.htm
4. http://www.ego4u.com/en/cram-up/grammar/tenses
5. http://www.bbc.co.uk/skillswise/words/grammar/tenses/getting_the_right_tense/

homonyms

1. http://grammar.about.com/od/fh/g/homonymterm.htm
2. http://www.editingandwritingservices.com/homonyms.html
3. http://www.worsleyschool.net/socialarts/synonyms/page.html
4. http://www.cooper.com/alan/homonym_list.html/homonym.html

homophones

1. http://www.englishclub.com/pronunciation/homophones-what.htm
2. http://www.bifroest.demon.co.uk/misc/homophones-list.html
3. http://www.learnenglish.de/homophones/Homophones.htm

parts of speech

1. http://www.englishclub.com/grammar/parts-of-speech_1.htm
2. http://www.english-grammar-revolution.com/parts-of-speech.html
3. http://grammar.about.com/od/basicsentencegrammar/a/POS.htm
4. http://www.really-learn-english.com/english-parts-of-speech.html

british/american english

1. http://www.bg-map.com/us-uk.html
2. http://www.englishclub.com/vocabulary/british-american.htm
3. http://esl.about.com/library/vocabulary/blbritam.htm
4. http://www.woodlands-junior.kent.sch.uk/customs/questions/americanbritish.html
5. http://esl.fis.edu/grammar/easy/aebe.htm

prefix ans suffix

1. http://ueno.cool.ne.jp/let/prefix.html
2. http://www.englishclub.com/vocabulary/prefixes.htm
3. http://www.michigan-proficiency-exams.com/prefix-suffix.html
4. http://www.learnenglish.de/grammar/prefixtext.htm
5. http://www.learnenglish.de/grammar/prefixtext.htm
6. http://dictionary.reference.com/browse/suffix
7. http://www.learnenglish.de/grammar/suffixtext.htm
8. 
   
9. http://www.michigan-proficiency-exams.com/suffix-list.html

syllabification

1. http://www.printablereadinggames.com/room2/4inarow/phonics_game2.htm
2. http://www.englishclub.com/esl-forums/viewtopic.php?f=139&t=52165
3. http://teacher-toolbox.blogspot.com/2007/05/free-reading-games-word-activities.html
4. http://learnspeakingenglish.blogspot.com/2010/01/syllabification.html
5. http://www.ehow.com/list_6634889_basic-syllabication-rules.html

compound words

1. http://www.enchantedlearning.com/grammar/compoundwords/
2. http://www.phonicsontheweb.com/compound-words.php
3. http://rbeaudoin333.homestead.com/files/compound_words/compound_multi_1.html
4. http://rbeaudoin333.homestead.com/compoundwords_1.html
5. http://www.manythings.org/vocabulary/lists/a/words.php?f=compound_words
6. http://www.learningdifferences.com/Main%20Page/Topics/Compound%20Word%20Lists/Compound_Word_%20Lists_complete.htm

clipped words

1. http://answers.yahoo.com/question/index?qid=20090706221003AAftYzQ
2. http://grammar.about.com/od/c/g/clippingterm.htm
3. http://wiki.answers.com/Q/Example_of_clip_words
4. http://www.ask.com/questions-about/Examples-of-Clipped-Words
5. http://www.teachersdesk.org/vocabclip.html
6. http://www.edurite.com/kbase/10-examples-of-clipped-words
7. http://www.brighthub.com/education/languages/articles/59679.aspx

blended words

1. http://getwords.com/unit/80/ip:2
2. http://getwords.com/units/view/80/page:2/ip:2
3. http://www.ruf.rice.edu/~kemmer/Words/wordtypes.html
4. http://www.brighthub.com/education/languages/articles/59679.aspx
5. http://all-things-relevant.blogspot.com/2010/12/blended-words-in-english.html
6. http://www.thefreedictionary.com/List+of+blended+words

relative pronoun

1. http://www.englisch-hilfen.de/en/exercises/pronouns/relative_pronouns.htm
2. http://www.englishclub.com/grammar/pronouns-relative.htm
3. http://www.englishlanguageguide.com/english/grammar/relative-pronoun.asp
4. http://www.usingenglish.com/quizzes/51.html

http://www.google.co.in/search?hl=en&source=hp&q=tenses+in+english&oq=tenses&aq=1&aqi=g10&aql=&gs_sm=c&gs_upl=1651014l1652917l0l6l6l0l0l0l0l243l1173l0.

present,past,future sentences

1. http://www.englishpage.com/verbpage/verbtenseintro.html
2. http://www.ego4u.com/en/cram-up/grammar/tenses
3. http://www.englishclub.com/grammar/verb-tenses.htm
4. http://www.englisch-hilfen.de/en/grammar_list/zeitformen.htm

http://www.google.co.in/search?hl=en&source=hp&q=tenses+in+english&oq=tenses&aq=1&aqi=g10&aql=&gs_sm=c&gs_upl=1651014l1652917l0l6l6l0l0l0l0l243l1173l0.3.3l6&biw=1280&bih=685&cad=cbv

modal verbs

1. http://www.englishpage.com/modals/modalintro.html
2. http://www.learnenglish.de/grammar/verbmodal.htm
3. http://grammar.ccc.commnet.edu/grammar/auxiliary.htm

simple,complex, compound sentence

1. http://www.eslbee.com/sentences.htm
2. http://www.learnenglish.de/grammar/sentencetext.htm
3. http://www2.ivcc.edu/rambo/eng1001/sentences.htm
4. http://www.worldenglishclub.com/kinds-of-sentences-according-to-structure