1. CONDITIONALS
1.1. ZERO CONDITIONAL: IF PRESENT SIMPLE + PRESENT SIMPLE
1.2. 1ST CONDITIONAL: IF PRESENT SIMPLE, WILL+BASE VERB
1.3. 2ND CONDITIONAL: IF PAST SIMPLE, WOULD+BASE VERB
1.4. 3RD CONDITIONAL: IF PAST PERFECT, WOULD HAVE PAST PERFECT
2. PASSIVES
2.1. VERB CHANGES: TO BE + PAST PERCICIPLE (SAME VERBAL TENSE OF THE ACTIVE SENTENCE)
2.1.1. COLUMBUS DISCOVERED AMERICA IN 1942
2.1.1.1. ACTIVE
2.1.2. AMERICA WAS DISCOVERED BY COLUMBUS IN 1942
2.1.2.1. PASSIVE
3. PRESENT PERFECT - PAST SIMPLE
3.1. SPECIFIC TIMES IN THE PAST
3.1.1. PAST
3.2. UNSPECIFIED TIME IN THE PAST
3.2.1. PRESENT PERFECT
4. PAST SIMPLE -PAST PERFECT
4.1. PAST ACTION WHICH HAPPENED BEFORE ANOTHER ACTION
4.1.1. PAST PERFECT
4.2. FINISHED ACTION IN THE PAST
4.2.1. PAST SIMPLE
5. REPORTED SPEECH
5.1. PERSONAL PRONOUNS
5.1.1. I---HE/SHE
5.1.2. WE---THEY
5.1.3. YOU---HE/SHE/HIM/HER
5.1.4. ME---HIM/HER
5.1.5. US---THEM
5.2. DEMONSTRATIVE PRONOUNS
5.2.1. THIS---THAT
5.2.2. THESE---THOSE
5.3. TIME EXPRESSIONS
5.3.1. TODAY--THAT DAY
5.3.2. TONIGHT--THAT NIGHT
5.3.3. THIS MORNING--THAT MORNING
5.3.4. TOMORROW--THE FOLLOWING DAY
5.3.5. YESTERDAY--THE PREVIOUS DAY
5.3.6. NEXT WEEK--THE FOLLOWING DAY
5.3.7. LAST WEEK--THE PREVIOUS WEEK
5.4. TENSE CHANGES
5.4.1. PRESENT SIMPLE-- PAST SIMPLE
5.4.2. PRESENT CONTINUOUS-- PAST CONTINUOUS
5.4.3. PRESENT PERFECT -- PAST PERFECT
5.4.4. PAST SIMPLE-- PAST PERFECT
5.4.5. PAST CONTINUOUS --PAST PERFECT CONTINUOUS
5.4.6. WILL -- WOULD
5.4.7. CAN-- COULD
5.4.8. MAY-- MIGHT
5.4.9. MUST--HAD TO
6. MODALS
6.1. ABILITY
6.1.1. CAN / COULD
6.2. PERMISSION
6.2.1. CAN / COULD / MAY
6.3. ADVICE
6.3.1. SHOULD
6.4. OBLIGATION
6.4.1. MUST / HAVE TO
6.5. POSSIBILITY
6.5.1. MIGHT / MAY / COULD / CAN