How do you write first inversion triads in part writing?

Writing first inversion triads involves placing the third of the triad in the bass while the root moves up an octave. Here's how to write first inversion triads in part-writing:

1. Identify the Triad:

- Choose the root, third, and fifth notes of the desired triad.

2. Place the Third in the Bass:

- Write the third of the triad in the lowest voice (usually the bass clef).

3. Move Root up an Octave:

- Move the root of the triad up an octave from its original position.

4. Add the Fifth:

- Add the fifth of the triad in the middle voice.

5. Complete the Voicing:

- Depending on the context and desired voicing, you can optionally add the seventh or any other embellishments to the triad.

Here's an example of a first inversion C major triad in part-writing:

```

Treble Clef (Soprano): E

Middle Clef (Alto): G

Bass Clef (Tenor): C (written an octave higher)

```

Remember that the specific voicing and placement of the notes within the different clefs may vary based on the musical context and composer's preferences.