If + past simple/continuous + If + past simple/continuous + wouldwould

If I didn´t have didn´t have to work, I would would spend spend a few years travelling

around the world.

We use the second conditional to talk about situations or actions in the

present or future, which are not likely are not likely to happen or are imaginary, to happen or are imaginary, hypothetical or impossible.hypothetical or impossible. 

It is also used to give advice.

IfIf I wonwon the lottery, I wouldwould travel around the world and buy a castle in

Norway.

I think that it is very unlikely to win the lottery. However, in this unlikely

condition, I would travel and buy a castle.

IfIf I wasn't watchingwasn't watching TV now, I wouldwould be playing football.

I am watching TV, and imagining what I would do if I wasn't.

IfIf I werewere an alien, I wouldwould be able to travel around the universe.

It is impossible for me to be an alien. However, I am imagining what I would do in this situation.

IfIf I werewere you, I´d learn I´d learn Chinese.

IfIf I werewere you, I´d change I´d change my lifestile.

We can use other modal verbs in place of 'would'. 

IfIf I hadhad more money, I couldcould buy a car. Buying a car would be possible 

IfIf I wonwon the lottery, I mightmight give all the money to charity. 

Giving the money to charity is only a possibility