Results that always happen if the condition is present
First Conditionals
[If / When + present tense] + [will]
Second Conditionals
things in the future that are probably not going to be true or something in the present which is impossible because it is not true
Second Conditionals
[If + simple past tense] + [would + base form of the verb]
Third Conditional
[If / When + past perfect tense] + [would have + past participle]
Third Conditional
If you had told me you needed a ride, I would have left earlier.
Present Result of a Past Action unreal past condition and its probable result in the presentsituation contrary to reality both in the past and in the present
Past Result of Present or Continuing Condition unreal present situation and its probable (but unreal) past resultIf Clause: “now” or “always”Main Clause: “before now”
Past Result of Present or Continuing Condition
[If / When + simple past] + [perfect conditional]
Present Result of a Past Action
[If / When + past perfect] + [present conditional]