1	Bērtulis	nominative case, singular	nominative case, singular
2	Bērtula	genitive case, singular	genitive case, singular
3	Bērtulim	dative case, singular	dative case, singular
4	Bērtuli	accusative case, singular	accusative case, singular
5	Bērtuli	instrumental case, singular	instrumental case, singular
6	Bērtuli	locative case, singular	locative case, singular
7	Bērtuli	vocative case, singular	vocative case, singular
8	Bērtuli	nominative case, plural	nominative case, plural
9	Bērtulu	genitive case, plural	genitive case, plural
10	Bērtuliem	dative case, plural	dative case, plural
11	Bērtulus	accusative case, plural	accusative case, plural
12	Bērtuliem	instrumental case, plural	instrumental case, plural
13	Bērtulos	locative case, plural	locative case, plural
14	Bērtuli	vocative case, plural	vocative case, plural