Student or Learner
What is the difference of :
1) I could not be of help.
2) I could not help.
a) Why there is 'be of' in (1)
b) In what situation we should use 'be of'?
There's no difference in meaning.
a) It is more formal.
b) Use it if you want to sound formal or if you have to write a 100-word paragraph and are stuck on 98 words.