MFarooq if we use "WILL" instead of" WOULD" in the dialogue "B" what will be difference? In this situation I consider "I feel it would be proper" a formula of politeness, but the infinitival phrase "to hear from the lady" serves as a sort of condition equivalent to "if we [heard / were to hear] from the lady", so there is also a conditional element present. Similarly, also with infinitives: It would be easy to wait another 10 minutes.
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MFarooqif we use "WILL" instead of" WOULD" in the dialogue "B" what will be difference?In this situation I consider "I feel it would be proper" a formula of politeness, but the infinitival phrase "to hear from the lady" serves as a sort of condition equivalent to "if we [heard / were to hear] from the lady", so there is also a conditional element present.
MFarooqSo, when we are not sure about future action whether it will happen or not we use "would" instead of using "will". That is what you are saying Sir? ThanksThat is often what we do. Yes. Sometimes we use "may" or "might" as well in those cases.
MFarooqHow about "could and should"? Do we use these as well?Not to express uncertainty. No.