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英语

back up 的动词变位表

Simple tenses

Present
Iback up
youback up
he/she/itbacks up
weback up
youback up
theyback up
Past
Ibacked up
youbacked up
he/she/itbacked up
webacked up
youbacked up
theybacked up
Present Perfect
Ihavebacked up
youhavebacked up
he/she/ithasbacked up
wehavebacked up
youhavebacked up
theyhavebacked up
Past Perfect
Ihadbacked up
youhadbacked up
he/she/ithadbacked up
wehadbacked up
youhadbacked up
theyhadbacked up
Will-Future
Iwillback up
youwillback up
he/she/itwillback up
wewillback up
youwillback up
theywillback up
Going to-Future
Iamgoing toback up
youaregoing toback up
he/she/itisgoing toback up
wearegoing toback up
youaregoing toback up
theyaregoing toback up
Future Perfect
Iwill havebacked up
youwill havebacked up
he/she/itwill havebacked up
wewill havebacked up
youwill havebacked up
theywill havebacked up

Continuous tenses

Present
Iambacking up
youarebacking up
he/she/itisbacking up
wearebacking up
youarebacking up
theyarebacking up
Past
Iwasbacking up
youwerebacking up
he/she/itwasbacking up
wewerebacking up
youwerebacking up
theywerebacking up
Present Perfect
Ihave beenbacking up
youhave beenbacking up
he/she/ithas beenbacking up
wehave beenbacking up
youhave beenbacking up
theyhave beenbacking up
Past Perfect
Ihad beenbacking up
youhad beenbacking up
he/she/ithad beenbacking up
wehad beenbacking up
youhad beenbacking up
theyhad beenbacking up
Will-Future
Iwill bebacking up
youwill bebacking up
he/she/itwill bebacking up
wewill bebacking up
youwill bebacking up
theywill bebacking up
Going to-Future
Iamgoing to bebacking up
youaregoing to bebacking up
he/she/itisgoing to bebacking up
wearegoing to bebacking up
youaregoing to bebacking up
theyaregoing to bebacking up
Future Perfect
Iwill have beenbacking up
youwill have beenbacking up
he/she/itwill have beenbacking up
wewill have beenbacking up
youwill have beenbacking up
theywill have beenbacking up

Conditional

Conditional
Iwouldback up
youwouldback up
he/she/itwouldback up
wewouldback up
youwouldback up
theywouldback up
Conditional Past
Iwould havebacked up
youwould havebacked up
he/she/itwould havebacked up
wewould havebacked up
youwould havebacked up
theywould havebacked up

Imperative

back up

Impersonal

ing-Form
backing up
Past Participle
backed up