Category:Verbal Categories
Feature:The Past Tense WALS
Name:No past tense
Languages (225):
Conlangs (178):
SASXSEK
Livagian [phonologically]
Naidda
Viksen
Minza
Héhà
Bryatesle
Jaibi
Jaghri
Classical Arithide
Toki Pona
K'tle
Mavakhalan
Kuyʔūn
Tine
Kiassan Turasta
Patakasama
Yulasa
FIAL
Annese
SIAL
Buruya Nzaysa
Fila
Ishtol
Kangir
Rnihonön
TIAL
Yaufulti
Aaro
Larler
Klingon
Dahu
Dzidmitsu
Neo-Fictish
Wirid
Celdirin
Proto-Aukkangtin
Zorillo
Lonmai Luna
Tmaśareʔ
Nevotak
Verunic
Lhaa: Siri
Arroe
Himmaswa

The past is indicated indirectly through the use of aspect markers.
Proto-Frinthan
Ieteje
yiqa' yiywos
toka na musume
Ancient Yakim Language
Kobardon
Omluuet
Barbane
Palawa Kani
westcontinental Ngyamkyehe language
Modern low Ponuhi
Tatari Faran
Cwengaer
Doayâu
Q'oligo
Old Lonmai luna
Meditsrai
Old Zarcosian
Seto ka'palo
Ancient
Palethian
Maksinaunminverbe The grammatical category exists, but is only expressed with core nominal case; the verb does not participate in marking tense.
Adejori There are three degrees of past tense, indicated with sentence-initial clitics. Tense is absolute (ie. rather than relative to context of narrative or conversation), but it is marked optionally.
Attian
Ixe Wa
Tengan
Standard Hymmnos
Pastalie Hymmnos
Raxic
Eranai
Proto-Zachydic
Satang There is no past tense per se, only the realis mood.
Apelcheq Maulochsab
Guzadinkya
Meletsian
Usangtari
Senduri
Avemuacha
Ronc Tyu
Shujum
Jot wugta ha
Jajuna
Ccharthii
Depth Language
Nuim
Cikap
Omayna
Workinprogressian
Lwaitel
Tnaaq
Deinau
Jutean
Leopardish III
Mindakri
Kaingu
Haotyetpi
Classical Uraki
Ernalan
diSellat
Tasza
Red Creek
Omnizzabon
Thulean
Ussaria
Selade
Etelegbe
Kolyma Ainu
Kibaki
Kagian
Xingish
Touijab Kikxot
Faikari
Ancient Caspian
Interesting
Pandunia
Miirna
Istokahi
griushkoent
Wistanian
Ilcharotic
Westlandish
Pandunia (Inflected)
Missa
Eneqa
Ame language
Avalonian
Hallon
Shalolese
Napasei
Shurs
Gilya
Infernal
PURK
Kobold
HIH
Arusian
Ubaghuns Tëhe
Scotian
Narish
Proto-Maritime
Jhaa
Tínaaqhe
Eiidana
Proto-Besokian
Old Soskish
Aats'ax
Rukun
Tamma
Kali-Sise
Toki Ma
Qaelian
Sen:esepera
Undercommon
Eremoran
Jakvalat
Nkarkoa
Dladwu
Laiqbun
Valtal
the I-Picked-Some-Random-Features-With-a-Die Language)
Ebma
Mipukwi
Wenja
Hayakan
Soc'ul'
Standard Knrawi
iigraa
Vrkhazhian
Jigodu
Clone of Arusian
Vanawo
Asthezhi 
Past actions are conveyed by verbal constructions, by adverbs, or simply by context.

Natlangs (47):
Mandarin
Indonesian
Acoma
Ainu
Apurina
Arapesh
Bagirmi
Berber (Middle Atlas)
Burmese
Chamorro
Chukchi
Ewe
Greenlandic (West)
Hausa
Hmong Njua
Jakaltek
Ju|'hoan
Kayardild
Ket
Khmer
Kiowa
Krongo
Kutenai
Lango
Lavukaleve
Lakhota
Malagasy
Mapudungun
Maricopa
Maybrat
Meithei
Mixtec (Chalcatongo)
Nivkh
Oneida
Piraha
Sango
Tagalog
Thai
Tukang Besi
Vietnamese
Wari'
Wichita
Yukaghir (Kolyma)
Yoruba
Cree (Plains)
Karok
Koyraboro Senni