Как правильно записать эти предложения в present perfect. my elder sister just ( to come) back. my father already (to read) these magazines. his mother never (to translate) such difficult articles.

1. My elder sister has just come back
2. My father has already read there magazines
3. His mother has never translated such difficult articles.

My elder sister is just coming.
My father is already reading...,
his mother is never translating...