Fanciful, I should say
For the simplest of reasons
Forgive me if I seem disobliging
Fortunate, to say the least
Frankly, I don’t see why it should
Frugal to a degree
Fulsome praise, I call it
Give me your sympathy and counsel
Glorious to contemplate
Good! that is at least something
Gratifying, I am sure
Happily there are exceptions to every rule
Has it really come to that?
Have I incurred your displeasure?
Have you any rooted objection to it?
Have you anything definite in your mind?
Have you reflected what the consequences might be to yourself?
He does me too much honor
He feels it acutely
He has a queer conception of the proprieties
He is a poor dissembler [dissemble = conceal behind a false appearance]
He is anything but obtuse
He is so ludicrously wrong
He is the most guileless of men
He was so extremely susceptible
He writes uncommonly clever letters
Heaven forbid that I should wound your sensibility
His sense of humor is unquenchable
How amiable you are to say so
How can I tell you how much I have enjoyed it all?
How can I thank you?
How can you be so unjust?
How delightful to meet you
How does the idea appeal to you?
How droll you are!
How intensely interesting!
How perfectly delightful!
How utterly abominable
How very agreeable this is!
How very interesting
How very surprising
How well you do it!
However, I should like to hear your views
Human nature interests me very much indeed
I admire your foresight
I admit it most gratefully
I agree—at least, I suppose I do
I agree that something ought to be done
I always welcome criticism so long as it is sincere
I am absolutely bewildered
I am afraid I am not familiar enough with the subject
I am afraid I cannot suggest an alternative
I am afraid I’ve allowed you to tire yourself
I am afraid I must confess my ignorance
I am afraid you will call me a sentimentalist
I am always glad to do anything to please you
I am anxious to discharge the very onerous debt I owe you
I am appealing to your sense of humor
I am at your service
I am bound to secrecy
I am compelled to, unluckily