Usages of но и
Я хочу не только чай, но и кофе.
I want not only tea but also coffee.
Вы не только спрашиваете, но и отвечаете вежливо.
You not only ask questions but also answer politely.
Интересно думать не только о будущем, но и о прошлом.
It is interesting to think not only about the future but also about the past.
Elon.io is an online learning platform
We have an entire course teaching Russian grammar and vocabulary.