إِيَّاكَ نَعْبُدُ وَإِيَّاكَ نَسْتَعِينُ
You alone we worship, and You alone we ask for help.
The two verbs, naʿbudu and nastaʿīnu, are distinct. Repeating iyyāka before each highlights worship and seeking help as related but separate orientations toward the same addressee. Attention to only the first fronting would miss part of the parallel design.
In the wider surah, praise of God precedes this direct address. The shift in person (iltifāt) and the preposing of the object are separate features. Their combined effect can be discussed, but they are not identical grammatical devices.