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英语

underpin 的动词变位表

Simple tenses

Present
Iunderpin
youunderpin
he/she/itunderpins
weunderpin
youunderpin
theyunderpin
Past
Iunderpinned
youunderpinned
he/she/itunderpinned
weunderpinned
youunderpinned
theyunderpinned
Present Perfect
Ihaveunderpinned
youhaveunderpinned
he/she/ithasunderpinned
wehaveunderpinned
youhaveunderpinned
theyhaveunderpinned
Past Perfect
Ihadunderpinned
youhadunderpinned
he/she/ithadunderpinned
wehadunderpinned
youhadunderpinned
theyhadunderpinned
Will-Future
Iwillunderpin
youwillunderpin
he/she/itwillunderpin
wewillunderpin
youwillunderpin
theywillunderpin
Going to-Future
Iamgoing tounderpin
youaregoing tounderpin
he/she/itisgoing tounderpin
wearegoing tounderpin
youaregoing tounderpin
theyaregoing tounderpin
Future Perfect
Iwill haveunderpinned
youwill haveunderpinned
he/she/itwill haveunderpinned
wewill haveunderpinned
youwill haveunderpinned
theywill haveunderpinned

Continuous tenses

Present
Iamunderpinning
youareunderpinning
he/she/itisunderpinning
weareunderpinning
youareunderpinning
theyareunderpinning
Past
Iwasunderpinning
youwereunderpinning
he/she/itwasunderpinning
wewereunderpinning
youwereunderpinning
theywereunderpinning
Present Perfect
Ihave beenunderpinning
youhave beenunderpinning
he/she/ithas beenunderpinning
wehave beenunderpinning
youhave beenunderpinning
theyhave beenunderpinning
Past Perfect
Ihad beenunderpinning
youhad beenunderpinning
he/she/ithad beenunderpinning
wehad beenunderpinning
youhad beenunderpinning
theyhad beenunderpinning
Will-Future
Iwill beunderpinning
youwill beunderpinning
he/she/itwill beunderpinning
wewill beunderpinning
youwill beunderpinning
theywill beunderpinning
Going to-Future
Iamgoing to beunderpinning
youaregoing to beunderpinning
he/she/itisgoing to beunderpinning
wearegoing to beunderpinning
youaregoing to beunderpinning
theyaregoing to beunderpinning
Future Perfect
Iwill have beenunderpinning
youwill have beenunderpinning
he/she/itwill have beenunderpinning
wewill have beenunderpinning
youwill have beenunderpinning
theywill have beenunderpinning

Conditional

Conditional
Iwouldunderpin
youwouldunderpin
he/she/itwouldunderpin
wewouldunderpin
youwouldunderpin
theywouldunderpin
Conditional Past
Iwould haveunderpinned
youwould haveunderpinned
he/she/itwould haveunderpinned
wewould haveunderpinned
youwould haveunderpinned
theywould haveunderpinned

Imperative

underpin

Impersonal

ing-Form
underpinning
Past Participle
underpinned