My first clarifying question:Below are examples from
Manhattan Prep on conditional moods:
■ Example 1 (about the future from the present): The scientist ANNOUNCES that the supercollider WILL PROVIDE new insights into the workings of the universe.
■ Example 2 (if the scientist made the announcement yesterday): The scientist ANNOUNCED that the supercollider WOULD PROVIDE new insights into the workings of the universe.
For Example 2, why can't you use "will" instead of "would"?
--> The scientist ANNOUNCED that the supercollider WILL PROVIDE new insights into the workings of the universe. Can you only use "will" when the other verb in the sentence is also in present tense?
My second clarifying question:Manhattan Prep also provides this complicated example:
The scientist ANNOUNCED that the supercollider WAS READY, that it HAD not COST too much to build, and that it WOULD PROVIDE new insights into the workings of the universe.
■ Simple past: “the supercollider WAS ready”
■ Past perfect: “it HAD not COST too much to build”
■ Conditional mood: “it WOULD PROVIDE new insights”
■ The prediction that it “would provide new insights” is an instance of future from the past, so the conditional mood is the right pairing
I do not understand how "would provide" is appropriate here when the machine is currently ready. Wouldn't you need to say, "will provide"?
Many thanks!