The second conditional, also known as a type 2 conditional or an improbable conditional is an English pedagogical conditional consisting of an unreal conditional structure used to express hypotheticals, i.e. unlikely or impossible situations and their natural consequences, in present time, future time or general time.
An illustrative example is "If I were a rich man, I'd buy a car" Another typical example is used for giving advice: "If I were you, I'd stay in bed."
|"If I won a lot of money ..."||The 'standard' if clause in the past tense.|
|"If I were rich..."||With be we tend to say "were" rather than "was" as this subjunctive|
|"Were I rich..."||With be it's possible to form a conditional clause by inversion|
|"Had I a lot of money..."||It's also possible with "have" - but not other verbs.|
|"If I were to win a lot of money..."||We can use "were to" with actions, but not general truths.|
|"Were I to win a lot of money,..."||We can also invert "were to".|
|"Should I win a lot of money,..."||We can use should to form conditionals as well.|
- "If I knew the answer I would tell you."
We can use add the progressive aspect:
- "If I knew the answer I would be telling you now."
We can't use the perfect aspect (that transforms into a present condition, past consequence mixed conditional).