I

I am glad that~
I beg of you…
I beg you, please
I bet…, I’m telling you…
I hear
I wish I had done ~
I wish…
I wonder
I wonder
I wonder, isn’t it…
I [informal]
Idaho
ideal
If I had to say one way or the other
if only one does ~
if possible
if…
if…were to ~
illicit drugs
imagine
immigrant
impertinent, cheeky
import
important
impressed, to be
impression
in an instant
in contrast to ~
in doing…
in fact
in former times
in order to do ~
in short
in spite of
in spite of…
in the state of having done ~
in this way
include
inconvenient
increase (v.i.)
increase (v.t.)
India
indicate
Indonesia
industry
inferior (one’s)
influence
instead of
insufficient, to be
international
intimate
invent
investigate
invited for a meal, to be
Iran
island
it has been arranged [it is the rule] that…
it is certain[true]…
it is said that ~
it isn’t the case that ~
it means that ~
it was decided that…
it’s better…than ~
it’s just that