These phrases don’t hold together so much. Clearly Laertes is distraught (with good reason.) But even though the words are disjointed and the sense shifts and clicks and stops and starts, it is all metrically pretty even (aside from the feminine ending of the first line.)
It’s as if Laertes, even in his grief, cannot let go of convention. He speaks in ten beat lines, though the iambs are up and down and he keeps interrupting himself. He’s crying but won’t give himself time or space to cry. There is no obvious pause in this flow of words – there is no spot for him to stop and get emotional. But instead, the stopped up nature of his feeling comes out in his broken up speech.