(quantifier – with plural countable nouns: neutral meaning "more than two"; archaic/formal meaining "separate/respective")
She visited several countries.
Она посетила несколько стран.
Several factors influenced our decision.
На наше решение повлиял ряд факторов.
I have several letters to post.
Мне нужно отправить пару писем.
Each witness gave a several account of the incident.
Каждый свидетель дал своё собственное описание инцидента.
The three partners hold several liability for the debt.
Три партнера несут индивидуальную ответственность по долгу.
The property was divided into several plots.
Имущество было разделено на отдельные участки.
(quantifier – without nouns – neutral)
Several of them were late to the meeting.
Несколько из них опоздали на встречу.
Several of my friends are learning English.
Некоторые из моих друзей учат английский.
There were many options, and several were chosen for the project.
Было много вариантов, и ряд из них выбрали для проекта.