(We must make the most of our lives.) Ist uns auch zum Weinen zumute, so dürfen wir es doch nicht.
I'm not sure of the function of the four words in bold.
1. Why the word order "Ist uns" instead of "Uns ist ... zumute"? Is it a conditional clause without "wenn"?
2. Does this "auch" simply mean "also"? Or does it come from "auch wenn", meaning "even if"?
3. Is this the "so" that is often used at the beginning of a main conditional clause? Or does it mean "we cannot allow it to be like that"?
4. Is it more natural to use "dürfen" like this without any infinitive verb like "tun"?
I'm not sure of the function of the four words in bold.
1. Why the word order "Ist uns" instead of "Uns ist ... zumute"? Is it a conditional clause without "wenn"?
2. Does this "auch" simply mean "also"? Or does it come from "auch wenn", meaning "even if"?
3. Is this the "so" that is often used at the beginning of a main conditional clause? Or does it mean "we cannot allow it to be like that"?
4. Is it more natural to use "dürfen" like this without any infinitive verb like "tun"?