Yes! (if you want it grammatically correct)
No, "off guard" is typically not hyphenated when used as an adjective before a noun, but it can be hyphenated when used as a compound modifier. For example: "She caught him off guard" vs. "He was caught off-guard."
"Left-handed" is a hyphenated compound word.
The word "self-confidence" is hyphenated.
Yes, "low-to-intermediate" should be hyphenated when used as a compound modifier before a noun.
Yes, "great-grandchildren" is hyphenated correctly.
No, the phrase "thank you note" is typically not hyphenated when used in a sentence.
It is not hyphenated.
The criminal had caught him off-guard by sneaking up quietly behind him.
Motorcycle is not hyphenated
No it's not hyphenated.
words are only hyphenated when they have a separate meaning when separated than they do when hyphenated
No, "hardworking" is not hyphenated.
Yes it should be hyphenated.
It can be. Some words can be seen both hyphenated and non-hyphenated.
"Field" is not hyphenated.
No they shouldn't be hyphenated.
No, "homework" shouldn't be hyphenated.
All-consuming is hyphenated