Features

Name
Classification
1. Number agreement: -z elsewhere
CASE AND AGREEMENT
2. Number agreement: -(t)z- in dative structures (v -zki-)
CASE AND AGREEMENT
3. 2nd person ergative number agreement: -e (v -te)
CASE AND AGREEMENT
4. 3rd person plural ergative number agreement: -e (v -te)
CASE AND AGREEMENT
5. Number agreement: -it in ditransitive constructions (v -zki) 
CASE AND AGREEMENT
6. Number agreement in allocutives: -zki (v -it)
CASE AND AGREEMENT
7. Number agreement drop: sagarrak jan du (v ditu)
CASE AND AGREEMENT
8. Dative agreement drop: gizonari liburua eman du (v dio)
CASE AND AGREEMENT
9. Differential object  marking: ikusi nizun  (v ikusi zintudan)
CASE AND AGREEMENT
10. Dative (first) objects in transitive verbs: itxarongo dizut, diot (v itxarongo zaitut, dut)
CASE AND AGREEMENT
11. Dative Displacement: eman nauzu (v eman didazu)
CASE AND AGREEMENT
12. Dative marking of the unaccusative causee: etorrarazi  dizute (v etorrarazi zaituzte)
CASE AND AGREEMENT
13. Me-lui constraint (etorri natzaizu)
CASE AND AGREEMENT
14. Past intransitive structures with dative: jatan (v zitzaidan)
CASE AND AGREEMENT
15. Past finite verbal forms involving 3rd person absolutive arguments: Ø (v z)
CASE AND AGREEMENT
16. Neutralization of ergative displacement: emon dostezun (v zeunstan, zenidan)   
CASE AND AGREEMENT
17. Absolutive marked subjects in some unergative verbs: borrokatu naiz (v dut )
CASE AND AGREEMENT
18. Eduki ‘possesive have’ and jakin ‘know’ synthetic forms including dative clitics: dekotzu, dakitzu
CASE AND AGREEMENT
19. Ergative/absolutive syncretism in the plural: ­-ak (v -ek)
CASE AND AGREEMENT
20. Dative plural marker: -er, -eri (v -ei)
CASE AND AGREEMENT
21. Genitive marking of the transitive object with nominalized verbs: ogiaren erostera (v ogia erostera)
CASE AND AGREEMENT
22. Partitive marker to make emphasis in existential clauses: badugu sagar onik (v baditugu sagar onak)
CASE AND AGREEMENT
23. Allocutive and addressing forms
CASE AND AGREEMENT
24. Allocutives beyond declarative clauses: di(n)ala (v duela)
CASE AND AGREEMENT
25. Auxiliaries *edin/ezan in relative clauses: pozgarri zekizkion hitzak (v pozgarri zitzaizkion hitzak)
AUXILIARY ALTERNATION
26. Auxiliary roots in non-indicative (di)transitive forms:  -gi- (v -za-)
AUXILIARY ALTERNATION
27. Indicative in imperative clauses: ez haizela joan (v ez hadi joan)
AUXILIARY ALTERNATION
28. Ditransitive auxiliary forms (-i, -ts, -ra)
AUXILIARY ALTERNATION
29. Bivalent intransitive forms: zakidan, dakit (v zitzaidan, zait)
AUXILIARY ALTERNATION
30. *Edun ‘have’ instead of izan ‘be’ with bivalent unaccusatives: gustatzen nau, gustatzen dizu (v zait, zaizu)
AUXILIARY ALTERNATION
31. Causatives: eragin (v arazi)
AUXILIARY ALTERNATION
32. Imperfective aspect in hypothetical conditional clauses’ protasis: -tzen ba- (v -tuko ba-)
ASPECT
33. Participial predicates: -(r)ik, -ta (v -a)
ASPECT
34. Time/place modifiers with participial predicates
ASPECT
35. Use of analytical verbs instead of the synthetic form in the past: ekarri nuen, ekartzen nuen (v nekartzan)
ASPECT
36. Imperfective aspectual marking (-ten, -etan, -tuten, -iten, -ketan)
ASPECT
37. Prospective aspectual marking: -(r)en (v -ko)
ASPECT
38. Aspect marking doubling: izandu da, egondu da, itzundu da (v izan da, egon da, itzun da)
ASPECT
39. Perfective participial suffix in non-indicative mood: etorri dadin (v etor dadin)
ASPECT
40. Perfective participial suffix in non-indicative mood with derived verbs: aberetu dadin (v abere dadin)
ASPECT
41. Complex postpositions in animate noun phrases: -gan- (v -rengan-)
POSTPOSITIONS
42. Participial relatives: etorritako, etorririko, etorririkako, etorriniko, etorriko (v etorri)
POSTPOSITIONS
43. Sociative: -gaz  (v -kin)
POSTPOSITIONS
44. Sociative: -kilan (v -kin)
POSTPOSITIONS
45. Sociative/instrumental alternation: -kin, -kilan (v -z)
POSTPOSITIONS
46. Destinatives: -tzako, -dako, -tako  (v -tzat)
POSTPOSITIONS
47. Approximation allative: -ra aldera, -raka (v -rantz)
POSTPOSITIONS (LOCATIVES)
48. Nominalized verb + inessive to express purpose: egiten joan (v egitera joan)
POSTPOSITIONS (LOCATIVES)
49. Animate locatives: baitan  (v -gan)
POSTPOSITIONS (LOCATIVES)
50. Ablative/partitive alternation: -(r)ik  (v -tik)
POSTPOSITIONS (LOCATIVES)
51. Allative marking: -rat/-lat/-alat (v -ra)
POSTPOSITIONS (LOCATIVES)
52. Terminative marking: ra gino (v -raino)
POSTPOSITIONS (LOCATIVES)
53. Instrumental/inessive alternation in temporal modifiers: the instrumental (-z) (v the inessive (-n))
POSTPOSITIONS (LOCATIVES)
54. Stage level copular verbs: izan (v egon)
(IN)TRANSITIVITY
55. Expressing possession: eduki, ukan  (v izan/*edun)
(IN)TRANSITIVITY
56. Ukan ‘have’ instead of izan ‘be’ in resultative participial contexts
(IN)TRANSITIVITY
57. Progressive ari, along with ergative subject and transitive auxiliary *edun ‘have’: ari dut  (v ari naiz)
(IN)TRANSITIVITY
58. Progressive periphrases: ibili, egon  jardun, erauntsi (v ari izan)
(IN)TRANSITIVITY
59. Negation in imperative clauses: ez zaitezela joan (v ez zaitez joan)
COMPLEMENTIZER
60. Partitive in appositive relative phrases with undetermined antecedent: -ik (v -a)
COMPLEMENTIZER
61. Non-factive complements: -(r)ik (v -(e)la)
COMPLEMENTIZER
62. Non-factive sentential complements: -(e)n  (v -(e)la)
COMPLEMENTIZER
63. Factive sentential complements: -(e)na (v -(e)la) 
COMPLEMENTIZER
64. Bait- in sentential complements: bait-  (v -(e)la)  
COMPLEMENTIZER
65. Appositive relatives with pronouns: zein...bait- (v -(e)n)
COMPLEMENTIZER
66. Auxiliaries *edin/*ezan in hypothetical conditionals’ apodosis (v izan/*edun)
MOOD
67. Morpheme -ke- expressing uncertain future: dukezu
MOOD
68. Potential by means of modal particle ahal: apurtzen ahal da (v apur daiteke)
MOOD
69. Real conditional forms in the protasis to express unreal past condition: egin (izan) bazuen (v egin (izan) balu)
MOOD