Definify.com
Definition 2025
perustaa
perustaa
Finnish
(index pe)
Verb
perustaa
- (transitive) To establish, found, set up, institute.
- (transitive) To base (on = illative).
- (intransitive, + elative, colloquial) To care for/about, like, be fond of. Used mostly in negative sentences.
Conjugation
| Inflection of perustaa (Kotus type 53/muistaa, no gradation) | ||||||
|---|---|---|---|---|---|---|
| indicative mood | ||||||
| present tense | perfect | |||||
| person | positive | negative | person | positive | negative | |
| 1st sing. | perustan | en perusta | 1st sing. | olen perustanut | en ole perustanut | |
| 2nd sing. | perustat | et perusta | 2nd sing. | olet perustanut | et ole perustanut | |
| 3rd sing. | perustaa | ei perusta | 3rd sing. | on perustanut | ei ole perustanut | |
| 1st plur. | perustamme | emme perusta | 1st plur. | olemme perustaneet | emme ole perustaneet | |
| 2nd plur. | perustatte | ette perusta | 2nd plur. | olette perustaneet | ette ole perustaneet | |
| 3rd plur. | perustavat | eivät perusta | 3rd plur. | ovat perustaneet | eivät ole perustaneet | |
| passive | perustetaan | ei perusteta | passive | on perustettu | ei ole perustettu | |
| past tense | pluperfect | |||||
| person | positive | negative | person | positive | negative | |
| 1st sing. | perustin | en perustanut | 1st sing. | olin perustanut | en ollut perustanut | |
| 2nd sing. | perustit | et perustanut | 2nd sing. | olit perustanut | et ollut perustanut | |
| 3rd sing. | perusti | ei perustanut | 3rd sing. | oli perustanut | ei ollut perustanut | |
| 1st plur. | perustimme | emme perustaneet | 1st plur. | olimme perustaneet | emme olleet perustaneet | |
| 2nd plur. | perustitte | ette perustaneet | 2nd plur. | olitte perustaneet | ette olleet perustaneet | |
| 3rd plur. | perustivat | eivät perustaneet | 3rd plur. | olivat perustaneet | eivät olleet perustaneet | |
| passive | perustettiin | ei perustettu | passive | oli perustettu | ei ollut perustettu | |
| conditional mood | ||||||
| present | perfect | |||||
| person | positive | negative | person | positive | negative | |
| 1st sing. | perustaisin | en perustaisi | 1st sing. | olisin perustanut | en olisi perustanut | |
| 2nd sing. | perustaisit | et perustaisi | 2nd sing. | olisit perustanut | et olisi perustanut | |
| 3rd sing. | perustaisi | ei perustaisi | 3rd sing. | olisi perustanut | ei olisi perustanut | |
| 1st plur. | perustaisimme | emme perustaisi | 1st plur. | olisimme perustaneet | emme olisi perustaneet | |
| 2nd plur. | perustaisitte | ette perustaisi | 2nd plur. | olisitte perustaneet | ette olisi perustaneet | |
| 3rd plur. | perustaisivat | eivät perustaisi | 3rd plur. | olisivat perustaneet | eivät olisi perustaneet | |
| passive | perustettaisiin | ei perustettaisi | passive | olisi perustettu | ei olisi perustettu | |
| imperative mood | ||||||
| present | perfect | |||||
| person | positive | negative | person | positive | negative | |
| 1st sing. | — | — | 1st sing. | — | — | |
| 2nd sing. | perusta | älä perusta | 2nd sing. | ole perustanut | älä ole perustanut | |
| 3rd sing. | perustakoon | älköön perustako | 3rd sing. | olkoon perustanut | älköön olko perustanut | |
| 1st plur. | perustakaamme | älkäämme perustako | 1st plur. | olkaamme perustaneet | älkäämme olko perustaneet | |
| 2nd plur. | perustakaa | älkää perustako | 2nd plur. | olkaa perustaneet | älkää olko perustaneet | |
| 3rd plur. | perustakoot | älkööt perustako | 3rd plur. | olkoot perustaneet | älkööt olko perustaneet | |
| passive | perustettakoon | älköön perustettako | passive | olkoon perustettu | älköön olko perustettu | |
| potential mood | ||||||
| present | perfect | |||||
| person | positive | negative | person | positive | negative | |
| 1st sing. | perustanen | en perustane | 1st sing. | lienen perustanut | en liene perustanut | |
| 2nd sing. | perustanet | et perustane | 2nd sing. | lienet perustanut | et liene perustanut | |
| 3rd sing. | perustanee | ei perustane | 3rd sing. | lienee perustanut | ei liene perustanut | |
| 1st plur. | perustanemme | emme perustane | 1st plur. | lienemme perustaneet | emme liene perustaneet | |
| 2nd plur. | perustanette | ette perustane | 2nd plur. | lienette perustaneet | ette liene perustaneet | |
| 3rd plur. | perustanevat | eivät perustane | 3rd plur. | lienevät perustaneet | eivät liene perustaneet | |
| passive | perustettaneen | ei perustettane | passive | lienee perustettu | ei liene perustettu | |
| Nominal forms | ||||||
| infinitives | participles | |||||
| active | passive | active | passive | |||
| 1st | perustaa | present | perustava | perustettava | ||
| long 1st2 | perustaakseen | past | perustanut | perustettu | ||
| 2nd | inessive1 | perustaessa | perustettaessa | agent1, 3 | perustama | |
| instructive | perustaen | — | negative | perustamaton | ||
| 3rd | inessive | perustamassa | — | 1) Usually with a possessive suffix. 2) Used only with a possessive suffix; this is the form for the third-person singular and third-person plural. |
||
| elative | perustamasta | — | ||||
| illative | perustamaan | — | ||||
| adessive | perustamalla | — | ||||
| abessive | perustamatta | — | ||||
| instructive | perustaman | perustettaman | ||||
| 4th | nominative | perustaminen | ||||
| partitive | perustamista | |||||
| 5th2 | perustamaisillaan | |||||