Not to rain on your parade but a translator is (I'm being subjective here) the worst idea. So if you're translating watashiha (or watashiwa) to "I am", what if it's followed by a verb/adjective instead of a noun? Watashiha kirai desu is NOT "I am hate", but "I hate it". Watashiha tabemashita is NOT "I am ate", but "I ate". I'd say not just a can, but a MOUNTAIN of worms.