撮ってあげる
I take photos for them.
私は写真を撮ってあげます
I take several photos for them.
私は写真を何枚も撮ってあげます
I take several group photos for them.
私は集合写真を何枚も撮ってあげます
I take several group photos of my younger brother and his friends.
私は弟と友達の集合写真を何枚も撮ってあげます
I take several group photos of my younger brother and his friends on the school field.
私は学校の運動場で弟と友達の集合写真を何枚も撮ってあげます