Locate the infinitive and determine how it is used. she had planned to begin piano lessons last week. infinitive: use:

The infinitive is "to begin".it is used as a part of the verb phrase in order to convey the meaning. the verb phrase which is "had planned to begin". the infinitive is used to describe her action because without it planned cannot be used since it requires to have a regular verb in order to convey meaning.

Atahualpaemperor of the inca empire who rose to the throne after winning a civil war between him and his brother.  -he refused to become a spanish vassal or christian.-francisco pizarro kidnapped him and demanded a huge ransom.  -pizarro's secretary described him as "a man of thirty years, good-looking and poised, somewhat stout, with a wide, handsome, and ferocious face, and the eyes flaming with blood."-after the ransom was paid, atahualpa was killed by pizarro

What sisters? is it in a story?