Editing Interlingue (section)

==== Verbs ====
Verbs in Interlingue have three endings: -'''ar''', -'''er''', and -'''ir'''. Conjugation is performed with a combination of endings and auxiliary verbs. The verb {{lang|ie|esser}} (to be) is exceptional in being written {{lang|ie|es}} in the present  tense, while the {{lang|ie|esse}} form is the imperative.<ref name=":13" />
{| class="wikitable"
|+
Simple Verb Tenses
!
!Form
!Interlingue
!English
!Notes
|-
|[[Infinitive]]
| -ar / -er / -ir
|{{lang|ie|amar}} / {{lang|ie|decider}} / {{lang|ie|scrir}}
|to love / to decide / to write
|
|-
|[[Present tense|Present]]
| -a / -e / -i
|{{lang|ie|yo ama}} / {{lang|ie|decide}} / {{lang|ie|scri}}
|I love / decide / write
|
|-
|[[Past tense|Past]]
| -t
|{{lang|ie|yo amat}} / {{lang|ie|decidet}} / {{lang|ie|scrit}}
|I loved / decided / wrote
|stress thus falls on the last syllable: {{lang|ie|yo am'''at'''}}
|-
|[[Future tense|Future]]
|{{lang|ie|va}} + {{gcl|INF}}
|{{lang|ie|yo va amar}} / {{lang|ie|decider}} / {{lang|ie|scrir}}
|I will love / decide / write
|{{lang|ie|va}} on its own is not a verb (to go = {{lang|ie|ear}} or {{lang|ie|vader}})
|-
|[[Conditional mood|Conditional]]
|{{lang|ie|vell}} + {{gcl|INF}}
|{{lang|ie|yo vell amar}} / {{lang|ie|decider}} / {{lang|ie|scrir}}
|I would love / decide / write
|Also used for hearsay: {{lang|ie|Un acusation secun quel il vell...}} {{Translation|An accusation alleging him to have...}} {{lit|an accusation according to which he would have...}}
|-
|[[Imperative mood|Imperative]]
| -a! / -e! / -i!
|{{lang|ie|ama!}} / {{lang|ie|decide!}} / {{lang|ie|scri!}}
|love! / decide! / write!
|Imperative of {{lang|ie|esser}} is {{lang|ie|esse}}.
|}

{| class="wikitable"
|+
Compound Verb Tenses
!
!Form
!Interlingue
!English
!Notes
|-
|[[Present perfect|Perfect]]
|{{lang|ie|ha}} + -t
|{{lang|ie|yo ha amat}}
|I have loved
|{{lang|ie|ha}} on its own is not a verb (to have = {{lang|ie|haver}})
|-
|[[Pluperfect]]
|{{lang|ie|hat}} + -t
|{{lang|ie|yo hat amat}}
|I had loved
|
|-
|[[Future perfect]]
|{{lang|ie|va har}} + -t
|{{lang|ie|yo va har amat}}{{lang|ie|
|I will have loved
|
|-
|[[Conditional perfect|Perfect conditional]]
|{{lang|ie|vell har}} + -t
|{{lang|ie|yo vell har amat}}
|I would have loved
|
|-
|[[Future in the past]]
|{{lang|ie|vat}} + {{gcl|INF}}
|{{lang|ie|yo vat amar}}
|I was going to love
|
|-
|[[Irrealis mood|Precative]]
|{{lang|ie|ples}} + {{gcl|INF}}
|{{lang|ie|ples amar!}}
|please love!
|
|-
|[[Hortative]]
|{{lang|ie|lass}} + {{gcl|INF}}
|{{lang|ie|lass nos amar!}}
|let us love!
|
|-
|[[Optative mood|Optative]]
|{{lang|ie|mey}} + {{gcl|INF}}
|{{lang|ie|yo mey amar}}
|may I love
|Same as English {{lang|en|may}} in the optative mood 
(as in {{lang|en|May the Force be with you}}).
|-
|[[Participle#Forms|Present participle]]
| -nt
|{{lang|ie|amant}}
|loving
| -ir verbs become -ient
|-
|[[Gerund]] (adverbial participle)
| -nte
|{{lang|ie|amante}}
|(while) loving
| -ir verbs become -iente
|}

The present participle is used to qualify nouns: {{lang|ie|un cat ama}} ({{Translation|a cat loves}}), {{lang|ie|un amant cat}} ({{Translation|a loving cat}}) and is often seen in adjectives such as {{lang|ie|fatigant}} (tiring, from {{lang|ie|fatigar}}, to tire). The gerund is used to indicate another action or state of being going on at the same time: {{lang|ie|scriente un missage, yo videt que...}} ({{Translation|writing a message, I saw that...}}).<ref>{{Cite web|title=Cosmoglotta A, 1938, p. 69|url=https://anno.onb.ac.at/cgi-content/anno-plus?aid=e0g&datum=1938&size=45&page=70|access-date=9 January 2022|website=anno.onb.ac.at}}</ref>