I will answer you frankly
I will listen to no protestations
I will take it only under compulsion
I will tell you what puzzles me
I will think of it, since you wish it
I will, with great pleasure
I wish I could explain my point more fully
I wish I knew what you meant by that
I wish to be perfectly fair
I wish to put things as plainly as possible
I wonder how much truth there is in it?
I wonder if you have the smallest recollection of me?
I would agree if I understood
I wouldn't put it just that way
If ever I can repay it, command me
If I mistake not you were there once?
If I speak strongly, it is because I feel strongly
If I were disposed to offer counsel
If I were sure you would not misunderstand my meaning
If you don't mind my saying so
If you insist upon it
If you will pardon me the frankness
In a manner that sometimes terrifies me
In one respect you are quite right
In that case let me rob you of a few minutes
In what case, for example?
Incredible as it sounds, I had for a moment forgotten
Indeed, but it is quite possible
Indeed! How?
Indeed, you are wholly wrong
Indifferently so, I am afraid
Irony was ten thousand leagues from my intention
Is it sane--is it reasonable?
Isn't it amazing?
Isn't it extraordinarily funny?
Isn't it preposterous?
Isn't that a trifle unreasonable?
Isn't that rather a hasty conclusion?
Is that a fair question?
It always seemed to me impossible
It amuses you, doesn't it?
It blunts the sensibilities
It could never conceivably be anything but popular
It depends on how you look at it
It depends upon circumstances
It doesn't sound plausible to me
It has a lovely situation as I remember it
It has amused me hugely
It has been a relief to talk to you
It has been an immense privilege to see you