CONDITIONAL 1
Real situation with possible or likely results
IF +☺+ V/ Vs, ☺+ will + V
If you eat all the ice-cream, you will be sick.
CONDITIONAL 2
unreal situation with impossible or unlikely results
IF +☺+ Ved/ V2, ☺+ would + V
If we all worked together, we could solve the problem faster.
CONDITIONAL 3
unreal past situation with impossible or unlikely results
IF +☺+ had V3, ☺+ would + have V3
(passive)
IF +☺+ had V3, ☺+ would + have been V3
If the ship had had more lifeboats, more passengers would have been saved
MIXED CONDITIONAL
Imagined or actual event in the past with a result in the present
IF +☺+ had V3, ☺+ would + V
If she had worn her seat-belt, she would still be alive
Present state which has influenced past events
IF +☺+ Ved/V2, ☺+ would have V3