Learn Dutch to get certified at NTII. NTII.A2.01. Alphabet [Alfabet] 01. Alphabet song 02. Alphabet list 03. Vowels and diphthongs ‘a’ 04. Vowels and diphthongs ‘aa’ 05. Vowels and diphthongs ‘au’ 06. Vowels and diphthongs ‘e’ 07. Vowels and diphthongs ‘ee’ 08. Vowels and diphthongs ‘eu’ 09. Vowels and diphthongs ‘ei’ 10. Vowels and diphthongs ‘I’ 11. Vowels and diphthongs ‘ie’ 12. Vowels and diphthongs ‘ij’ 13. Vowels and diphthongs ‘o’ 14. Vowels and diphthongs ‘oe’ 15. Vowels and diphthongs ‘oo’ 16. Vowels and diphthongs ou’ 17. Vowels and diphthongs ‘u’ 18 Vowels and diphthongs ‘ui’ 19. Vowels and diphthongs ‘uu’ NTII.A2.02. Numbers [Telwoorden] NTII.A2.03. Regular verb present tense [Regelmatige werkwoorden]