Parallel Structure

My teacher explained not only how to read but also explained writing.

My teacher explained how to read but he does not explain writing.

My teacher explained how to read and is explaining writing.

My teacher explained not only how to read but also how to write.

Today Miguel went to the store, to the school, and was going to the gym.

Today Miguel plans to go to the store, the school, and will go to the gym later.

Miguel's plan for today involves going to the store, going to the school, and going to the gym.

Today, Miguel will go to the gym after he goes to the store and the school.

I went to the taqueria to buy tacos, nachos, and to buy enchiladas.

I went to the taqueria to buy tacos, nachos, and enchiladas.

Shai went to the taqueria to buy tacos, and she bought nachos and enchiladas as well.

Shai went to the taqueria were she bought tacos, nachos, and she needed enchiladas as well.