we must know where to use should and would. should would can be used in three 6 situations.
Should ...is often used as an alternative to Shall with I and We to Request for an advice and Instruction. There are three uses of Should.

Examples:

According to you, what should I do now? Should I send him an e-mail, write him a letter or should I try to call him up? (We are asking for advice)

• We often use Should for obligation and duty purpose with all subjects (he,she,it,they,we,I,you)

Examples:

We should serve the humanity.

The rich should not hate the poor.

They should not be given too much liberty.

• We use Should for slight possibility.

Examples:

If you should see her in the concert, do give her my best regards.

• Before telling you the uses of Would let me clear you one thing, we see many sentences in English like; he ‘d find him , she ‘d find him. It means he would find him, she would find him.

‘d = would

• We use Would to express past habits.

Examples:

When we were young, we would play every moment (when we were young, we’d play every moment)

When we were infants, we would not pay attention to the girls.

• To make polite requests we will use Would.

Examples:

Would you be ready to go with me

Would you be prepared to do my class work?

Would you give treat tonight because I have some work tomorrow?

• We use would if we want to put some simple condition in a sentence.

Example:

You would still be working for IMF if Pakistan had paid back its loan. :D