Saoirse wrote:
'I done me homework' instead of 'I did my homework',
'I seen me sister' instead of 'I saw my sister'
It’s perfectly logical, diachronically speaking.
English long ago lost the distinction (in weak verbs) between the preterite form and the past passive participle. Since they’re identical, the only difference between the past and perfect tenses is the presence or absence of the auxiliary verb: “I [have] dined”, for example.
It’s only natural that, in the strong verbs that still maintain a difference between the two forms, the same system will sooner or later be applied. In some cases (like “I [have] seen/done”), the participle has been chosen as the form to be used; in others (as in “I [have] wrote” or “I [have] went” in some American dialects), the preterite form was generalised.
Whether or not this will catch on and be generalised to all verbs, at least in some forms of English, is anyone’s guess. It hasn’t yet, but it may yet do so. So you might as well prepare for the fact that in two generations’ time, “I have wrote” or “I chosen” could be perfectly common, standard phrases.
