When is zero conditional used?
Facts/general truths, habits and routines.
Make a first conditional sentence.
(The weather / to be as sunny tomorrow as it was today / we / to go surfing)
"If the weather is as sunny tomorrow as it was today, we will go surfing."
Chuck isn't stupid, but he failed his midterm exam. Why? -- He didn't study for it.
Whenever my roommate snores loudly, I cannot sleep.
Zero conditional
When do we use first conditional?
Real/possible future situations and their probable results.
Make a second conditional sentence.
(I / to meet a genie / I / to ask him for three wishes)
If I met a genie, I would ask him for three wishes.
Humans ______ (live) if there is no air.
(Use a modal in present)
can't live
I want to work outside today, but that won't be possible because it's raining.
When do we use the type 2 conditional?
Hypothetical, unreal or unlikely situations in the present or future.
Make a zero conditional sentence.
(you / not to water / they / die)
If you don't water plants, they die.
If you ________(not do) the homework, you __________(be punished).
If you don't do your homework, you will be punished.
Say the tense differences between type 0 and type 1 conditionals.
Zero: if/when + present simple → present simple
First: if + present simple → will + base verb
Make a first conditional sentence.
( You / to forget my birthday / I / to speak to you again)
"If you forget my birthday, I'll never speak to you again".
If I ___________(be) a baby, I __________(sleep) and _______(play) all day.
(The fact is, you are NOT a baby now)
She would have become a teacher if she had gone to university
Compare 2 and 3 conditionals
Second conditional: unreal/hypothetical present or future
If + past simple → would + base verb
Third conditional: unreal/imagined past
If + past perfect → would have + past participle
Make a third conditional sentence.
(I / not eat so much / I / not feel sick)
"If I hadn't eaten so much, I wouldn't have felt sick."