If you should come across something weird, you would call me.( the second conditional sentence)
Could we use "should" to express a more doubtful idea in the second and third conditional sentences? would you please throw light on such an issue?
Updated: For clarification, I have just put some related examples that illustrate what I am strongly seeking for. You see, therefore, not only as to zero conditional sentences also the other types of conditional sentences you would use should to express more doubtfulness.
Edited: Is there any relation between the sentence R and probability or one of the following?
R. In case you (should)need to me, call me.
1.If I worked harder, I would/should pass the exam. (type 2)
2.If I had worked harder, I would/should have passed the exam. (type 3)
3.if we had lots of money, we would/should travel round the world. (Type 2)
4.If we had had lots of money, we would/should have travelled round the world (type 3)
What is more:
I am wondering what is the difference between the following?
If we had had lots of money, we would/should have travelled round the world