Thread: upon/would or will/ of which

The Iran nuclear deal: full text - CNN.com


This comprehensive solution would build on these initial measures and result in a final step for a period to be agreed upon and the resolution of concerns.



I am wondering about to what the preposition upon is refer.



And, I think the verb result has two objectives, namely, the resolution and a step. Am I right?

Or, I am too confused about the following! I do not know its objectives and can not rephrase it

\\
result in a final step for a period to be agreed upon and the resolution of concerns.




Moreover, would anybody readily tell me the reason why there has been applied the tense future in past? and why have the previous sentences been used simple future?



Furthermore, Would somebody please tell me if we can write especially the last part of my original sentence, using the following?

Of which


Eventually, Could anyone please elaborate whether or not I have grammatically and properly written my question(interrogative sentences)?



Thanks in advance

Originally Posted by nima_persian

The Iran nuclear deal: full text - CNN.com


This comprehensive solution would build on these initial measures and result in a final step for a period to be agreed upon and the resolution of concerns.



I am wondering about to what the preposition upon is refer.

period



And, I think the verb agreed has two objectives, namely, the resolution and a period. Am I right?

no. Just "period". It is "final step ...for a resolution" I think



Moreover, would anybody readily tell me the reason why there has been applied the tense future in past? and why have the previous sentences used simple future?

You mean the use of "would" ? That is how it is used -a future tense set in the past.

edit: well it is normally called the conditional tense-what will happen depends on something else being the case.

Furthermore, Would somebody please tell me if we can write especially the last part of my original sentence, using the following?

Of which

Not sure .How and where do you propose to use "of which" ?


Eventually, Could anyone please elaborate whether or not I have grammatically and properly written my question(interrogative sentences)?

Your English is pretty good.(not without mistakes but the questions seem properly formed to me)

Thanks in advance

..

The goal for these negotiations is to reach a mutually-agreed long-term comprehensive solution that would ensure Iranˈs nuclear program will be exclusively peaceful.


I am wondering the reason why there has been used the different tenses like the following:

Would

Will

Well the reason for the different tenses lies partly in the mind of the writer.

I think the writer thinks that the solution "would ensure ..." because he sees it as depending on successful negotiations and that is why the conditional form of the verb (will) is used.

Later "will" is used to indicate the (hopefully) definite nature of the agreement (there would need to be no conditionality about the actual agreement in the writer's mind)

Hope that is helpful.

In summary "would" indicates a conditionality (as an example "If you agree I would do something for you" ) and "will" is the simple form of the verb.

Someone else may explain it more simply than I have but you may have got the idea.