en > eu 
/ɪn/
1 prep. [indicating place, position] -n
in the mountains: mendian
in Rome: Erroman
2 prep. [indicating time] -n
in the morning: goizean
in winter: neguan
in 1976: 1976an
3 prep. [inside] -n
to be in bed: ohean egon
4 prep. [after a time] barru, -en buruan
to return in 4 days: 4 egun barru itzuli
5 prep. [within] -tan
to be ready in 5 minutes: 5 minututan prest egon
6 prep. [with quantities] -tan
in small groups: multzo txikitan
7 prep. [with age] inguru
he is in his forties: berrogei urte inguru ditu
8 prep. [during] -n
it's my first decent meal in three days: hiru egunean lehenengo aldiz jan dut ganoraz
during the twenties: hogeigarren hamarkadan
9 prep. [indicating circumstances] -n
in danger: arriskuan
10 prep. [indicating emotional state] -z; ø
in joy: poztasunez
to live in fear: beldurrez bizi
he answered in anger: haserre/amorruz erantzun zigun
11 prep. [indicating manner, condition] -z; -tan
to write in pen: bolalumaz idatzi
in this way: modu honetan
12 prep. [to describe the surroundings] -tan
to be in the darkness: ilunpetan egon
13 prep. [at home, work] -n; ø
is Mikel in?: Mikel etxean dago?; Mikel hor dago?
14 prep. [tide] goian
the tide's in: marea goian dago
15 prep. [after superlative] -ko
the best in our team: gure taldeko onena
16 prep. [wearing] -z; -ekin
he came dressed in black: beltzez jantzita etorri zen
dressed in her best clothes: bere arroparik onenekin
17 adv. [inside] barrura
to jump in: barrura salto egin