Use of 'would ', 'would have', 'would have been', 'would be'

i want to know the use of 'would ', ‘would have’,‘would have been’,‘would be’ in written
English.what are the situations and contexts where these are can i know
where to use these?

Please notice that I have changed the subject line of your post. Please use relevant post descriptions in future posts. The various forms of ‘would’ you have indicated represent different verb tenses, and are used much the same as the tenses of other verbs.

i need a help i want to know wats da difference between would have and would have been and where to use these two

Use of 'would ', ‘would have’, ‘would have been’, ‘would be’[YSaerTTEW443543]

TOEFL listening lectures: What is the main difference between a fad and a trend?[YSaerTTEW443543]