Explanation and Answer:
Sure, here are six sentences in French using the verbs you mentioned in the Passé Composé:
Hier, je suis allé à l’école. (Yesterday, I went to school.)
L’année dernière, je suis descendu de la montagne. (Last year, I descended from the mountain.)
Hier, il est entré dans la maison. (Yesterday, he entered the house.)
La semaine dernière, elle est venue me rendre visite. (Last week, she came to visit me.)
Hier, nous sommes arrivés à la gare. (Yesterday, we arrived at the station.)
L’année dernière, nous sommes montés sur la tour Eiffel. (Last year, we ascended the Eiffel Tower.)
Remember, in French, the past participle must agree in gender and number with the subject when using être as the auxiliary verb in the Passé Composé. For example, if you’re a woman and you’re talking about yourself, you would say “je suis allée” instead of “je suis allé”. Similarly, for multiple people, you would say “nous sommes arrivés” if it’s a group of men or a mixed group, and “nous sommes arrivées” if it’s a group of women.