Functions of "Would"

[Emmason]

Thanks for your answers in advance. Pls I would like someone to tell me why the use of "would" in the following sentences? 1. I would call you. 2. I would like you to give me some cake 3. When should we use "would", apart from its function as past tense of "will"? Once again, thanks for your answers.

[whitemoon]

1. to express a polite offer or request:
Would you like tea?
Would you like me to do it?
2.to describe a habitual past action:
Every evening I would walk in the garden.
3.used in speaking of something that will, may or might happen(eg. if a certain condition is met):
If I asked him to the party, would he come?
4.used to express a preference, opinoin etc politely:
I would do it this way.
5. used, said with emphasis, to express annoyance:
I've lost my car-keys-that would happen!
Hope that help you.