ENGLISH GRAMMAR: verbs / tenses intermediate

PRESENT TENSE   PAST TENSE 
=> simple <=> continuous => simple <=> continuous
=> non-action verbs => simple present <=> simple past
PRESENT PERFECT TENSE   PAST PERFECT TENSE 
=> simple <=> continuous FUTURE AND FUTURE PERFECT 
MODALS USED TO
CONDITIONALS PASSIVE VOICE

 

PRESENT TENSE: (revision)
simple present   <=> present continuous 
Use present simple  
  exercise 1* (use simple present)
  exercise 2*(use simple present <=> pesent continuous)
  exercise 3* (use simple present <=> pesent continuous)
  exercise 4** (use simple present <=> pesent continuous)
-
Easy * Average** Difficult  ***
  exercise 1   exercise 1: study the grammar rules, do the exercises! (BZL)   exercise 1
  exercise 2   exercise 2   exercise 2
  exercise 3   exercise 3   exercise 3
  exercise 4
  exercise 5
extra: non-action verbs
  grammar explanation 
  exercise 1 * (use)
PAST TENSE: (revision)
simple past  <=> past continuous 
Use simple past
Easy * Average** Difficult  ***
exercise 1 * exercise 1 ** exercise 1 ***
exercise 2 * (past forms - reg.) exercise 2 **
exercise 3 * (past forms - irreg.) exercise 3 **
exercise 4 * (asking questions) exercise 4 **
exercise 5 * 
exercise 6 * 
exercise 7 * (making negatives)
present <=> past 
Easy * Average** Difficult  ***
exercise 1 ** exercise 2 ** (asking questions) exercise 4 ** (formation, use, questions, negatives)
exercise 3 ** 
exercise 4 ** 
extra
list irregular verbs
exercise 1 *
exercise 2 **
FUTURE:
simple future will <=> going to  simple present <=> simple future
exercise 1 * exercise 1 ** exercise 5 ***
  exercise 2 *  exercise 2 ** exercise 6 ***
  exercise 3 *  exercise 3 ***
exercise 4 ***
exercise 5 **
exercise 6 **
exercise 7 **

FUTURE PERFECT:
futur perfect simple / continuous futur perfect simple <=> continuous mixed: 
  exercise 1 * future perfect simple   exercise 1 **   exercise 1 * 
  exercise 2 * future perfect continuous   exercise 2 **   exercise 2 * 
  exercise 3 **   exercise 3 ** future continuous or future perfect simple
  exercise 4 **   exercise 4 * future continuous or future perfect simple
  exercise 5 **
-
PRESENT PERFECT TENSE:
present perfect tense: formation present perfect: simple <=> continuous present perfect <=> simple past
  exercise 1 *    exercise 1 **   exercise 1 *  (use)   exercise 13 * (time indications)
  exercise 2 **   exercise 2 **   exercise 2 *  (use)    exercise 14 * 
  exercise 3 * (formation simple)   exercise 3 *   exercise 3 *     exercise 15 **
  exercise 4 * (formation continuous)   exercise 4 **   exercise 4 **   exercise 16 *
  exercise 5 * (formation continuous)   exercise 5 **   exercise 5 **
  exercise 6 *   exercise 6 ***   exercise 6 **
  exercise 7 **   exercise 6 **   exercise 7 ***
  exercise 8 * (irregular)   exercise 8 *
  exercise 9 * (negatives)   exercise 9 *
  exercise 10 **
  exercise 11 **
  exercise 12 **

-
PAST PERFECT TENSE:
past perfect tense: formation past perfect: simple <=> continuous past perfect <=> simple past
  exercise 1 *  (use)
  exercise 2 **

USED TO:
  exercise 1 * 
  exercise 2 * (used to <=> to be used to)
- exercise 3 * 
 exercise 4 * 
 exercise 5 **
 exercise 6 **
 exercise 7 ** (used to - would - get used to)
MODALS:
modals - use 
  exercise 1  * (can, could, be able to)   exercise 7 * (must / have to)   exercise 13 * (might, should, must) 
  exercise 2 * (can, could, be able to)   exercise 8 * (must / have to) do this ex. again using could / ought to / have to (box
  exercise 3 *(can / could / may / might)   exercise 9 * (must / have to) below) and click below for answers
  exercise 4  * (can, could, may, might)   exercise 10  *  (don't have to , musn't )   exercise 14 * (should / must)
  exercise 5 * (couldn't - might not)   exercise 11 * (musn't / needn't)   exercise 15 * must, have to, should, ought to
  exercise 6 * (can/can't / must/musn't)   exercise 12 * (would <=> may)   exercise 16 * (need, needn't, should)
  exercise 17 ** (would, could, should, might)
mixed - more difficult
  exercise 1 *    exercise 5 **
  exercise 2 *    exercise 6 *
  exercise 3 *   
  exercise 4 *
PASSIVE VOICE:
  exercise 1 *    exercise 5 **
  exercise 2 *    exercise 6 ***
  exercise 3 *    exercise 7 ***
  exercise 4 *   exercise 8 **
CONDITIONALS:
warming up...
  exercise 1 first conditional (active)   exercise 1 second conditional (active)   exercise 1 third conditional 
  exercise 2 first conditional (active)   exercise 2 second conditional (active)   exercise 2 third conditional 
  exercise 3first conditional (passive)   exercise 3 second conditional (active)
  exercise 4 first conditional (passive)   exercise 4 second conditional (active)
  exercise 5  I wish + past simple (2nd)   exercise 3 I wish + past perfect (3rd)
more...
  a summary : the grammar    exercise 6 * second conditional   exercise 10 **: all 4 conditionals
  exercise 2 * zero conditional   exercise 7 * second conditional (present unreal)   exercise 11 *: mixed
  exercise 3 * if / when   exercise 8 ** first or second cond?
  exercise 4 *  first conditional   exercise 9 * third conditional (past unreal)
  exercise 5 *  first conditional