Start English to Proto Indo European with a narrow task
Choose a simple clause or a clearly identified concept rather than a long modern speech. A family relationship, an action involving an ordinary object or a concrete description makes the intended meaning easier to track. Modern institutions, technical vocabulary and idioms can introduce questions about concepts before questions about grammar even begin. Write down the meaning you intend and the grammatical role of each participant so you have something specific to compare with a returned form.
Use English to Proto Indo European as an entry point for a focused language-study question. A long fluent-looking result is harder to evaluate than a short clause with an explicit meaning.
