regular model: work
verbs ending in -e: like

work - model verb

Variants of the regular models:

  1. pass -s, -sh, -x, -o: +e
  2. try -y>ie
  3. omit -X>-XX
  4. die -ie: -ie>y
  5. agree -ee: +d

Irregular past tense models:

  1. cost invar.
  2. feed vowel: long>short
  3. find i>ou
  4. know [o,a]>e
  5. mean +t
  6. panic -k-
  7. pay -ay>aid
  8. send -d>-t
  9. sing i>a, u
  10. show >ed, -n
  11. stick a>u, i>u
  12. sleep -ee_>-e_t
  13. speak >o_e, o_en
  14. spell >ed, -t
  15. take -ake>-ook, -aken
  16. think >-ought
  17. wear -ear>-ore, -orn
  18. write -i_e>o_e, i_en

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invest

It is conjugated like: work
infinitive:
present participle:
past participle:
(to) invest
investing
invested
definition
in Spanish
in French
in Italian

Indicative

presentAlso known as:
present simple or simple present
Iinvest
youinvest
he, she, itinvests
weinvest
youinvest
theyinvest
simple pastAlso known as:
past simple or preterite
Iinvested
youinvested
he, she, itinvested
weinvested
youinvested
theyinvested
future
Iwill invest
youwill invest
he, she, itwill invest
wewill invest
youwill invest
theywill invest

Perfect tenses

present perfect
Ihave invested
youhave invested
he, she, ithas invested
wehave invested
youhave invested
theyhave invested
past perfectAlso known as:
pluperfect
Ihad invested
youhad invested
he, she, ithad invested
wehad invested
youhad invested
theyhad invested
future perfect
Iwill have invested
youwill have invested
he, she, itwill have invested
wewill have invested
youwill have invested
theywill have invested

Continuous (progressive) and emphatic tenses

present continuous
Iam investing
youare investing
he, she, itis investing
weare investing
youare investing
theyare investing
past continuous
Iwas investing
youwere investing
he, she, itwas investing
wewere investing
youwere investing
theywere investing
present emphatic
Ido invest
youdo invest
he, she, itdoes invest
wedo invest
youdo invest
theydo invest
past emphatic
Idid invest
youdid invest
he, she, itdid invest
wedid invest
youdid invest
theydid invest

Compound continuous (progressive) tenses

present perfect
Ihave been investing
youhave been investing
he, she, ithas been investing
wehave been investing
youhave been investing
theyhave been investing
past perfect
Ihad been investing
youhad been investing
he, she, ithad been investing
wehad been investing
youhad been investing
theyhad been investing
future
Iwill be investing
youwill be investing
he, she, itwill be investing
wewill be investing
youwill be investing
theywill be investing
future perfect
Iwill have been investing
youwill have been investing
he, she, itwill have been investing
wewill have been investing
youwill have been investing
theywill have been investing

Conditional

present
Iwould invest
youwould invest
he, she, itwould invest
wewould invest
youwould invest
theywould invest
perfectAlso known as:
past conditional
Iwould have invested
youwould have invested
he, she, itwould have invested
wewould have invested
youwould have invested
theywould have invested
present continuous
Iwould be investing
youwould be investing
he, she, itwould be investing
wewould be investing
youwould be investing
theywould be investing
perfect continuous
Iwould have been investing
youwould have been investing
he, she, itwould have been investing
wewould have been investing
youwould have been investing
theywould have been investing

Imperative

present
(you)invest!
(we)let's invest!
(you)invest!

Subjunctive

present
Iinvest
youinvest
he, she, itinvest
weinvest
youinvest
theyinvest
past
Iinvested
youinvested
he, she, itinvested
weinvested
youinvested
theyinvested
future
Ishould invest
youshould invest
he, she, itshould invest
weshould invest
youshould invest
theyshould invest

*Blue letters in conjugations are irregular forms. (example)
*Red letters in conjugations are exceptions to the model. (example)

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