This

Zaimek

  is

Pomocniczy

  the

Wyznacznik

  main

Przymiotnik

  reason

Rzeczownik

  why

Przysłówek

  pesto

Rzeczownik

  recipes

Rzeczownik

  often

Przysłówek

  differ

Czasownik

  from

Przyimek

  each other

.

This is the main reason why pesto recipes often differ from each other.

This is the main reason why pesto recipes often differ from each other.