1. Find the way to do it

2. Find the way in which you can do it
3. Find the way in which to do it.
(Can we use all the expressions? Are they the same?)

4. Give me the money to buy food.
5. Give me the money with which you may buy food.
6. Give me the money with which to buy food.
(Can we use all the expressions? Are they the same?)
English - Writeacher today at 7:39am
1-3 all mean the same thing, but 2 and 3 are using extra (unneeded) words. 3 would be less wordy than 2, but 1 is best.

4 and 6 are the same, but 6 is wordy. 5 means someone else (not "me") is going to buy the food.
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I appreciate your help.

1. Find the way to do it
2. Find the way in which you can do it
3. Find the way in which to do it.
(What is the relationship between 'the way' and 'to do it'? Are they in apposition? Or does 'to do it' modify 'the way'? I mean 'an adjective phrase?)

"to do it" is an infinitive phrase.

http://www.chompchomp.com/terms/infinitivephrase.htm

I think that you're right that it's serving as an adjective here, modifying "way." In the linked webpage, see the third example under "Infinitive phrases can function as..."

In the phrases "the way to do it," "the way in which you can do it," and "the way in which to do it," "the way" is the noun phrase that refers to a method, manner, or course of action. "To do it," "in which you can do it," and "in which to do it" all function as adjectival phrases modifying "the way." They provide additional information about the specific type or manner of doing something.

To break it down further:
- "To do it" is an infinitive phrase that describes the purpose or objective of "the way." It explains why you are finding the way, which is to do something.
- "In which you can do it" is a relative clause that modifies "the way." It adds a condition or qualification to the way, indicating that there are certain possibilities or abilities for doing it.
- "In which to do it" is also a relative clause that modifies "the way." It suggests that there are specific situations or circumstances in which the action can be done using that particular way.

Overall, all three expressions convey the idea of finding a method or manner to accomplish a task, but they differ in terms of their syntax and level of wordiness.