I have generally observed
I have gone so far as to suggest
I have good reason for
I have had steadily in mind
I have had the honor
I have had to take a long sweep
I have heard it objected
I have heard with relief and pleasure
I have hitherto been adducing instances [adduce = cite as an example]
I have hitherto been engaged in showing
I have in a measure anticipated
I have in my possession
I have incidentally dwelt on
I have introduced it to suggest
I have labored to maintain
I have laid much stress upon
I have lately observed many strong indications
I have listened with the utmost interest
I have little hope that I can add anything
I have lived to see
I have long ago insisted
I have long been of the conviction
I have never heard it suggested
I have never whispered a syllable
I have no acquaintance with
I have no doubt whatever
I have no excuse for intruding
I have no fear of myself
I have no fears for the success
I have no hesitation in asserting
I have no intention to moralize
I have no particular inclination
I have no prejudice on the subject
I have no pretention to be regarded
I have no reason to think
I have no scruple in saying
I have no such gloomy forebodings
I have no sympathy with the men
I have no thought of venturing to say
I have no wish at all to preach
I have not accustomed myself
I have not allowed myself
I have not been able to deny
I have not particularly referred to
I have not said anything yet
I have not the means of forming a judgment
I have not the right to reproach
I have not time to present
I have nothing more to say
I have noticed of late years
I have now explained to you
I have now made bold to touch upon
I have now rather more than kept my word
I have now said all that occurs to me
I have often been impressed with
I have often been struck with the resemblance
I have often lingered in fancy
I have one step farther to go
I have only partially examined
I have partly anticipated
I have pleasant memories of
I have pointed out
I have pride and pleasure in quoting
I have racked this brain of mine
I have read with great regret
I have said and I repeat
I have said over and over again
I have said what I solemnly believe
I have scant patience