would could can't won't

[Iyionaku]

Yélian

Direyvain vigo dityareyvain, pured cityareyai pariút ciroreyai.
[diˈrɛʃvaɪ̯n ˈvixɔ ˌdit͡ʃaˈrɛʃvaɪ̯n, ˈpʊrə̆d‿it͡ʃaˈrɛʃaɪ̯ parˈjut‿ˌiroˈrɛʃaɪ̯]
COND-do-COND.1SG if COND-ABL-do-COND.1SG, however NEG-ABL-do-1SG therefore NEG-FUT-do-1SG

I would (do) if I could (do), but I can't (do) so I won't (do).

[Imralu]

Wena:

Hagwo na i mwe do na i hwa mye na i ze mwe do(zye) na i ze (hwa)
if.IRR 1s COP able.E then 1s COP act.AG but 1s COP NEG.E able.E then/(thus) 1s COP NEG.E (act.AG)

[marvelous]

Tasza

I would if I could, but I can't, so I won't.
Demuszí gos demuszíngi, vagiba hé demuszóngi, tajas hé demuszóze.
/dɛ'mʊʂi gɔs dɛmʊ'ʂiŋɪ, va'gɪba he dɛmʊ'ʂoŋɪ, ʈa'ɖ͡ʐas he dɛmʊ'ʂozɛ/
PROV-1S-COND if PROV-1S-COND-CAP, nevertheless NEG PROV-1S-GNO-CAP therefore NEG PROV-1S-PROG
I would if I could, but I can't, so I'm not.

Pusza

I would if I could, but I can't, so I won't.
Símothíngu kos símothíngicu, vakiba hé símothicu, tacas hé símozecu.
/simɔ'tʰiŋʊ kɔs simɔtʰi'ŋiʈ͡ʂʊ, va'kɪbʰa he simɔ'tʰiʈ͡ʂʊ, ta'ʈ͡ʂas he simɔ'zɛʈ͡ʂʊ/
do-3S.ABS.COND-1S.ERG if do-3S.ABS.COND-CAP-1S.ERG, nevertheless NEG do-3S.ABS.PRSNT-CAP-1S.ERG, therefore NEG do-3S.ABS.FUT-1S.ERG
I would do it if I could do it, but I can't do it, so I won't do it.

[kiwikami]

Alál
Assuming we've already marked some previous verb with the focus clitic ṣṣ.

Hua Ṣaṣxaı zııkk Ṣaṣàṭxaı (zııḷk) hua zııkìtıkḷ ızâḷkıtıkḷ.
hua ṣa<a>ṣ-xı-a zı<ıı-S>k Ṣa<a>ṣ-àṭ-xı-a (zı<ıı-A>k) hua zı<ıı>k-ìt=ḷḷ zı<á-A>k-ìt=ḷḷ
because FOC<1>-FUT-VOL.ACT 1<AGT.AUG-INFR> FOC<1>-HYP-FUT-VOL.ACT (1<AGT.AUG-CAP>) because 1<AGT.AUG>-NEG=CONT.FOC 1<OBL.AUG-CAP>-NEG=CONT.FOC
I would if I could, but I can't, so I won't.

Alál uses a combination of "because", the inferential mood, and a hypothetical-marked verb to indicate if-statements; the first-person pronoun with the capability mood, zııḷk, can be added to get the "if I could" point across, but it's not necessary, since the contrastive focus on the last two pronouns makes it very clear that one would but cannot. Both "I can't" and "I won't" are expressed using only the pronouns, the former marked with the capability mood and the latter as negative.

[Iyionaku]

Caelian

Rar dirussing vür Rar dirussingnas, wej Rar kë russingnas diz Rar kë rorussing.
[raɾ dirʊˈʃɪŋ vʏɾ raɾ dirʊˈʃɪŋnaʃ, wɛɪ̯ raɾ kʰə rʊˈʃiŋnaʃ dɪs raɾ kʰə rɔrʊˈʃɪŋ]
1SG.NOM COND-do.1SG>3SG if 1SG.NOM COND-do.1SG>3SG-ABL, but 1SG.NOM NEG do.1SG>3SG-ABL so 1SG.NOM NEG FUT-do.1SG>3SG

Anto

Da wode da wen kan wode da, aba da bam kan da, nun bam macha da.
[d̥aː ˈwɔd̥ɛ d̥a wɛn kʰan ˈwɔd̥ɛ d̥a, ab̥a d̥a b̥am kʰan d̥a, nun b̥am ˈmaχa d̥a]
1SG COND 1SG if can COND 1SG, but 1SG NEG can 1SG, so NEG do 1SG

Utseech

Il wort wejn il nöjnech wort, ava il diken nân alsu il diken wad.
[ɪɫ wɔɹt wɛjn ɪɫ ˈnœɪ̯nɛç wɔɹt, ˈavɐ ɪɫ ˈdɪkən nɚn ˈaɫzu ɪɫ ˈdɪkən wad]
1SG COND.1SG when 1SG can.INF COND.1SG, but 1SG NEG can.1SG so 1SG NEG FUT.1SG

Bath'aso

Homs tozobz, shels homs bats; tzorn shels zar bats, dzup zar bats.
[hɔms ˈtɤzɔ͡bz, ʂɛls hɔms bɑ͡ts; tz̥ɔɾn ʂɛls zɑr bɑ͡ts, ͡dzup zɑr bɑts]
COND do-1SG.ERG, POT HOMS 1SG.ERG, but POT NEG 1SG.ERG, so NEG 1SG.ERG

Paatherye

ओकु कण्तासज़ थोसा, मयूरज़ ओकु, वेते नोगज़ ओकु मूरमे, तूये नेमै ओकु कासेमे.
Ēku kantāsas thēsā, mayūras ēku, wete nēgas ēku mūrame, tūye nemay ēku kāseme.
[ˈeːku kanˈtaːsas ˈtʰeːsaː, maˈjuːras ˈeːku, ˈwete ˈneːɣas ˈeːku ˈmuːrame, ˈtuːje ˈnemaɪ̯ ˈeːku ˈkaːseme] (formal speech)
[ok kanˈtaːsas tʰos maˈjuːras ok, wət nog ok ˈmuːram, tuːɪ̯ nog ok ˈkaːsamaɪ̯] (colloquial speech)
1SG.NOM do.COND.1SG DEM.FEM.ACC, can.OPT.1SG 1SG.NOM, but NEG.1SG 1SG.NOM can.INF, so NEG.FUT.1SG 1SG.NOM do.INF

[Jojo87]

Maurs


lesate esa; nelesama enesa
can-do-PART, I-do; NEG-can-do-because, I-NEG-do
"being able to do it, I do it, because I'm not able to do it, I don't do it"

[Imralu]

Swahili:

Ningeweza, ningefanya, lakini siwezi, hivyo sitafanya.
ni-nge-wez-a | ni-nge-fany-a | lakini si-wez-i | hivyo si-ta-fany-a
1s-IRR-be.able-Ø | 1s-IRR-do-Ø | but NEG.1s-be.able-NEG.PRES | DEM.REF.8 NEG.1s-FUT-do-Ø
If I could, I would do it, but I can't, so I won't do it.

The irrealis can be used alone to indicate both protasis and apodosis, with protasis first. If their order is reversed, then an conjunction has to be used, I think.

[Alessio]

Italiano
Lo farei se potessi, ma non posso, quindi non lo farò.
/lo fa'rεi̯ se po'tessi ma non 'pɔsso 'kwindi non lo fa'rɔ/
lo far-ei se pot-essi ma non poss-o quindi non lo far-ò
3SG.M.OBJ do-COND.1SG if can-SUBJ.1SG but NEG can-1SG so NEG 3SG.M.OBJ do-FUT.1SG

As you can see, Italian pretty much has no pro-verb, so I'm forced to use the verb "fare" (to do).

[Imralu]

As you can see, Italian pretty much has no pro-verb, so I'm forced to use the verb "fare" (to do).

Isn't fare basically a perfect example of a pro-verb?

[qwed117]

As you can see, Italian pretty much has no pro-verb, so I'm forced to use the verb "fare" (to do).

Isn't fare basically a perfect example of a pro-verb?

From what I understand fare would be a dummy verb not a pro-verb, since pro-verbs are only non-verb parts of speech. Then again, I don't really understand much, so take my advice with a grain of salt

[Alessio]

"Fare" cannot be used as a proverb in the same way "do" can. I don't know if that still makes it a proverb or not, since I don't speak any other language with proverbs except English.
For example, if you say "Do you like fish? I do", it is a perfectly valid English sentence, but if you turn it into Italian by using "fare" it becomes "Ti piace il pesce? Io lo faccio", which makes no sense (or, in this particular case, it would suggest that you habitually cook fish, since "fare" can also mean "make").
So yeah, the only reason why "fare" is there in that translation is that I need a verb to apply the conditional mood to, so "to do" seems the most appropriate one. A dummy verb, indeded.

[Davush]

Gulf Arabic:

lō gidart, čān sawwēt, bass māgdar, fa-mā ba-sawwi.
if can-1p.PAST COND do.1p.PAST but NEG-can.1p.PRES so NEG FUT-do.1p

I think this construction is quite markedly different from other dialects both because of čān, and b- being used as a future marker.
The mā b- + participle construction might be possible too: fa-māni bi-msawwi.

[Imralu]

"Fare" cannot be used as a proverb in the same way "do" can. I don't know if that still makes it a proverb or not, since I don't speak any other language with proverbs except English.
For example, if you say "Do you like fish? I do", it is a perfectly valid English sentence, but if you turn it into Italian by using "fare" it becomes "Ti piace il pesce? Io lo faccio", which makes no sense (or, in this particular case, it would suggest that you habitually cook fish, since "fare" can also mean "make").
So yeah, the only reason why "fare" is there in that translation is that I need a verb to apply the conditional mood to, so "to do" seems the most appropriate one. A dummy verb, indeded.

Also a pro-verb. A pro-verb doesn't have to be an auxiliary like "do" is in English. It just has to be able to be used in place of another verb, precisely as "do" is.

The wikipedia articles about proverbs in French, Aragonais, Catalan and Dutch all list their versions of "do" as pro-verbs even though these languages don't do the thing that English does with do.

[kiwikami]

HyPry

Khre o nën kho, mu fe li nli, fe da lö nah, mu lö nren kho.
[kˣrɜ o nen kˣo mu p͡ɸɜ l̥i nli p͡ɸɜ tɑ l̥ø nɑh mu l̥ø nrɜn kˣo]
kho=re o nën kho mu fe li na=li fe da li=o na=a mu li=o na=ren kxo
COND=PVB AGT 1sg COND if can CF 1sg=HYP can however CF=AGT 1sg=IND if CF=AGT 1sg=FUT COND
I would if I could, but I can't, so I won't.

Edit: Now with gapping!

[Parlox]

Pod
Atod poŝod y pyi atod ǵodu ynbó atod kóyp ǵodu libó tui atod.
[atɑd pɑsʷɑd i piɪ atɑd kʼɑdɯ inpʼɤ atɑd kɤip kʼɑdɯ lipʼɤ tɯɪ atɑd]
1ST.NOM would PER if 1ST.NOM capable IMP-NEG 1ST.NOM but capable do-NEG so 1ST.NOM
I would if i could but i can’t so i won’t (lit, i would if i was capable but i’m not capable so i do not)

[Znex]

Yorkish
Ʒe scid gin ʒe kun, ut ʒe kan'k so ʒe ska'ck.
/jə scɪt cɪn jə kʰʊn | ʊt jə kʰan(ɪ)k sʊə jə skɒːk/
1SG COND.AUX if 1SG CAP.AUX.PST | but 1SG CAP.AUX=NEG so 1SG FUT.AUX=NEG
I would if I could, but I can't so I won't.

Welsh
Nawn i pe fedswn i, ond fedra i ddim felly na i ddim.
/naʊ̯n i pɛ 'vɛdsʊn i | ɔnd 'vɛdra‿i ðɪm 'vɛɬɨ na‿i ðɪm/
do.COND.1SG=1SG if.CNTF can.COND.1SG=1SG | but can.PRS/FUT.1SG=1SG NEG so do.PRS/FUT.1SG=1SG NEG
I would do it if I could, but I can't so I won't do it.