 jenis jenis dari Conditional Sentences :
1.  Conditional Sentences Type 1
Rumus Conditonal Senteces Type 1
If Simple Present tense, Simple future tense
If Subject + V/Ves + ket , Subject + Will + V1
If Subject + do/does + Not + V + Keterangan , Subject + Will + Not + V1.
2. Conditional Sentences Jenis 2
Rumus Conditional Sentences jenis 2
IF Simple Past , Past Future
IF Subject + V2 + ket , Subject + Would/might/Could + Should + V1
Past Future IF Simple Past
Subject + Would/might/Could + Should + V1 + IF Subject + V2 + ket.
3. Conditional Sentences type 3
Rumus Conditional Sentences type 3
IF Past Perfect, Subject + Would/Should/might, could + Simple present perfect. Atau bisa dibalik, sehingga IF berada ditengah dan menghilangkan tanda “Koma”.