keystone – English verb conjugation

English verb forms of keystone

Nominal Forms

Infinitive: to keystone
Participle: keystoned
Gerund: keystoning

Cognates

-

Indicative

Present

Ikeystone
youkeystone
he;she;itkeystones
wekeystone
youkeystone
theykeystone

Perfect

Ihave keystoned
youhave keystoned
he;she;ithas keystoned
wehave keystoned
youhave keystoned
theyhave keystoned

Past

Ikeystoned
youkeystoned
he;she;itkeystoned
wekeystoned
youkeystoned
theykeystoned

Pluperfect

Ihad keystoned
youhad keystoned
he;she;ithad keystoned
wehad keystoned
youhad keystoned
theyhad keystoned

Future

Iwill keystone
youwill keystone
he;she;itwill keystone
wewill keystone
youwill keystone
theywill keystone

Future Perfect

Iwill have keystoned
youwill have keystoned
he;she;itwill have keystoned
wewill have keystoned
youwill have keystoned
theywill have keystoned

Subjunctive

Present

Ikeystone
youkeystone
he;she;itkeystone
wekeystone
youkeystone
theykeystone

Perfect

Ihave keystoned
youhave keystoned
he;she;ithave keystoned
wehave keystoned
youhave keystoned
theyhave keystoned

Imperfect

Ikeystoned
youkeystoned
he;she;itkeystoned
wekeystoned
youkeystoned
theykeystoned

Pluperfect

Ihad keystoned
youhad keystoned
he;she;ithad keystoned
wehad keystoned
youhad keystoned
theyhad keystoned

Conditional

Present

Iwould keystone
youwould keystone
he;she;itwould keystone
wewould keystone
youwould keystone
theywould keystone

Perfect

Iwould have keystoned
youwould have keystoned
he;she;itwould have keystoned
wewould have keystoned
youwould have keystoned
theywould have keystoned

Imperative

youkeystone
weLet's keystone
youkeystone

Progressive (Continuous) Forms

Indicative

Present

Iam keystoning
youare keystoning
he;she;itis keystoning
weare keystoning
youare keystoning
theyare keystoning

Perfect

Ihave been keystoning
youhave been keystoning
he;she;ithas been keystoning
wehave been keystoning
youhave been keystoning
theyhave been keystoning

Past

Iwas keystoning
youwere keystoning
he;she;itwas keystoning
wewere keystoning
youwere keystoning
theywere keystoning

Pluperfect

Ihad been keystoning
youhad been keystoning
he;she;ithad been keystoning
wehad been keystoning
youhad been keystoning
theyhad been keystoning

Future

Iwill be keystoning
youwill be keystoning
he;she;itwill be keystoning
wewill be keystoning
youwill be keystoning
theywill be keystoning

Future Perfect

Iwill have been keystoning
youwill have been keystoning
he;she;itwill have been keystoning
wewill have been keystoning
youwill have been keystoning
theywill have been keystoning

Conditional

Present

Iwould be keystoning
youwould be keystoning
he;she;itwould be keystoning
wewould be keystoning
youwould be keystoning
theywould be keystoning

Perfect

Iwould have been keystoning
youwould have been keystoning
he;she;itwould have been keystoning
wewould have been keystoning
youwould have been keystoning
theywould have been keystoning

Other

Synonyms & Antonyms

Additional Information

Phrasal Verbs

Etymology

1. From key + stone.
2. Definition 4 (retail) possibly originated in the jewelry industry in the magazine called "Jewelers' Circular-Keystone".

Sample Sentences