youth hostel

I stay over.

私は泊まります

I stay over during the school trip.

私は学校の修学旅行のときに泊まります

I stay over with my classmates during the school trip.

私は学校の修学旅行のときに同級生たちと泊まります

I stay over with my classmates at the youth hostel in the mountains during the school trip.

私は学校の修学旅行のときに同級生たちと山中の青少年宿泊施設で泊まります

I stay over with my classmates at the youth hostel in the mountains for two days during the school trip.

私は学校の修学旅行のときに同級生たちと山中の青少年宿泊施設で二日間泊まります