That's the one drawback of this example, but there's still plenty to say: "ih-ih" and the "ih" in raining, which one can hear--the double "ih" in raining, the monosyilables suggesting a kind of a quick declaration of something followed by a sense of duration that one always feels when one is aware of rain coming: that "It is rainnnnnnning," so that the duration of prolongation of the word has a kind of semantic value indicating to us that this is something ongoing-- in other words, a variety of ways in which the poetic function of "It is raining" can be considered. 