I come, then, to this
I conclude that it was
I confess I can not help agreeing with
I confess my notions are
I confess that I like to dwell on
I confess truly
I dare say
I dare say to you
I differ very much from
I do not absolutely assert
I do not believe that
I do not blush to acknowledge
I do not contend that
I do not forget that
I do not know on what pretense
I do not mean to propose
I do not mean to say
I do not mistrust the future. 
I do not overlook tho fact that
I do not pretend to believe
I do not question this. 
I do not stand here before you
I do not think it unfair reasoning to
I do not vouch for
I do not want to argue the question of
I do not wish to be partial. 
I do not wish you to suppose that
I do not yield to any one
I entirely agree upon this point. 
I fear I only need refer to
I firmly believe that
I grant, of course, that
I grant that there are
I grant, too, of course, that
I have all along been showing
I have already alluded to
I have already said, and I repeat it
I have always argued that
I have another objection to
I have appealed to the testimony
I have a right to think that
I have been interested in hearing
I have been requested to say a word,
I have heard it said recently
I have hitherto been adducing instances
I have indicted
I have listened with pleasure to
I have never been able to understand
I have never fancied that
I have no confidence, then, in
I have no desire in this instance
I have no doubt that it is
I have only to add that
I have read of the
I have said that
I have so high a respect for
I have spoken of
I have the confident hope that
I have the strongest reason for
I have to appeal to you
I heartily hope and trust
I hope I have now made it clear that
I hope you will acquit me of
I insist that you do not
I invite you to consider
I know it is not uncommon for
I know that there is a difference of
I know that this will sound strange
I know well the sentiments of
I know whereof I speak. 
I leave it to you to say. 
I marvel that
I may as well reply
I may be told that
I may say further that
I may take it for granted
I mention them merely
I merely indicate
I must beg leave to dwell a moment
I must fairly tell you that
I must now beg to ask
I myself feel confident
I often wonder
I only wish to recognize
I pass by that. 
I pass, then, from the question of
I personally doubt whether it
I plainly and positively state
I point you to
I proceed to inquire into
I quote from
I read but recently a story
I really can not think it necessary to
I recollect that
I rejoice at the change that
I remember once when
I reply with confidence that
I rest my opinion on