CONDITIONAL SENTENCES

BENTUK UMUM :

MAIN CLAUSE + IF CLAUSE

DI MANA :

Main clause selalu mempunyai modal auxiliary
If clause selalu berupa : simple present, simple past, atau past perfect

1. conditional sentences type 1 : true in the present or future

S + MODAL V1 + V1 . . IF + S + V1 ATAU TO BE V1

FACT :
Mengubah kata if dengan on condition that, provided, atau unless

contoh :
conditional : I may study in university if i graduate from senior high school
fact : i may study in university on condition that i graduate from senior high school

2. conditional sentences type 2 : untrue in the present
S + MODAL V2 + V2 . . IF + S + V2 ATAU TO BE V2
FACT :
1. Ubah kata if menjadi because
2. Ubah tense menjadi simple present dan hilangkan modal
3. Ubah kalimat negatif menjadi positif dan sebaliknya

contoh :
conditional : I might study in university if i graduated from senior high school
fact : I don't study in university because i don't graduate from senior high school
3. conditional sentences type 3 : untrue in the past

S + MODAL V2 + HAVE + V3 . . IF + S + HAD + V3 ATAU HAD BEEN

FACT :
1. Ubah kata if menjadi because
2. Ubah tense menjadi simple present dan hilangkan modal
3. Ubah kalimat negatif menjadi positif dan sebaliknya

contoh :
conditional : I might have studied in university if i had graduated from senior high school
fact : I didn't study in university because i didn't graduate from senior high school

source: http://student.eepis-its.edu/~gal/condi1.html