Oftentimes I purposed (pollakis proethemēn). Second aorist middle of protithēmi, old verb to place, to propose to oneself, in N.T. only here, Rom 3:25; Eph 1:9. See note on Act 19:21 for this purpose.
And was hindered (kai ekōluthēn). “But was hindered,” adversative use of kai.
That I might have some fruit (hina tina karpon schō). Second aorist (ingressive), active of echō, to have, and here means “might get (ingressive aorist) some fruit.”