Verb to check up on

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English Verb Conjugations
to check up on
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Conjugate verb:

à â á æ ß ç é ê è ë î ï í ñ ô ö œ ü û ú ù

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check check in check into check off check out check over More

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English conjugation of the verb "to check up on" in Present Simple Tense

Affirmative
Negative
Interrogative
Definition & Examples

Simple Forms

Basic Forms

Infinitive
to check up on

Imperative
check up on
let's check up on
check up on

Present Participle
checking up on

Past Participle
checked up on

Indicative:

Present

I check up on
you check up on
he/she/it checks up on
we check up on
you check up on
they check up on

Past

I checked up on
you checked up on
he/she/it checked up on
we checked up on
you checked up on
they checked up on

Compound Forms

Indicative

Present continuous

I am checking up on
you are checking up on
he/she/it is checking up on
we are checking up on
you are checking up on
they are checking up on

Present perfect

I have checked up on
you have checked up on
he/she/it has checked up on
we have checked up on
you have checked up on
they have checked up on

Future

I will check up on
you will check up on
he/she/it will check up on
we will check up on
you will check up on
they will check up on

Future Perfect

I will have checked up on
you will have checked up on
he/she/it will have checked up on
we will have checked up on
you will have checked up on
they will have checked up on

Past continuous

I was checking up on
you were checking up on
he/she/it was checking up on
we were checking up on
you were checking up on
they were checking up on

Past perfect

I had checked up on
you had checked up on
he/she/it had checked up on
we had checked up on
you had checked up on
they had checked up on

Future continuous

I will be checking up on
you will be checking up on
he/she/it will be checking up on
we will be checking up on
you will be checking up on
they will be checking up on

Present perfect continuous

I have been checking up on
you have been checking up on
he/she/it has been checking up on
we have been checking up on
you have been checking up on
they have been checking up on

Past perfect continuous

I had been checking up on
you had been checking up on
he/she/it had been checking up on
we had been checking up on
you had been checking up on
they had been checking up on

Future perfect continuous

I will have been checking up on
you will have been checking up on
he/she/it will have been checking up on
we will have been checking up on
you will have been checking up on
they will have been checking up on

Basic Forms

Infinitive
not to check up on

Imperative
do not check up on
let's not check up on
do not check up on

Present Participle
not checking up on

Past Participle
not checked up on

Present

I do not check up on
you do not check up on
he/she/it does not check up on
we do not check up on
you do not check up on
they do not check up on

Past

I did not check up on
you did not check up on
he/she/it did not check up on
we did not check up on
you did not check up on
they did not check up on

Present continuous

I am not checking up on
you are not checking up on
he/she/it is not checking up on
we are not checking up on
you are not checking up on
they are not checking up on

Present perfect

I have not checked up on
you have not checked up on
he/she/it has not checked up on
we have not checked up on
you have not checked up on
they have not checked up on

Future

I will not check up on
you will not check up on
he/she/it will not check up on
we will not check up on
you will not check up on
they will not check up on

Future Perfect

I will not have checked up on
you will not have checked up on
he/she/it will not have checked up on
we will not have checked up on
you will not have checked up on
they will not have checked up on

Past continuous

I was not checking up on
you were not checking up on
he/she/it was not checking up on
we were not checking up on
you were not checking up on
they were not checking up on

Past perfect

I had not checked up on
you had not checked up on
he/she/it had not checked up on
we had not checked up on
you had not checked up on
they had not checked up on

Future continuous

I will not be checking up on
you will not be checking up on
he/she/it will not be checking up on
we will not be checking up on
you will not be checking up on
they will not be checking up on

Present perfect continuous

I have not been checking up on
you have not been checking up on
he/she/it has not been checking up on
we have not been checking up on
you have not been checking up on
they have not been checking up on

Past perfect continuous

I had not been checking up on
you had not been checking up on
he/she/it had not been checking up on
we had not been checking up on
you had not been checking up on
they had not been checking up on

Future perfect continuous

I will not have been checking up on
you will not have been checking up on
he/she/it will not have been checking up on
we will not have been checking up on
you will not have been checking up on
they will not have been checking up on

Indicative:

Present

do I check up on ?
do you check up on ?
does he/she/it check up on ?
do we check up on ?
do you check up on ?
do they check up on ?

Past

did I check up on ?
did you check up on ?
did he/she/it check up on ?
did we check up on ?
did you check up on ?
did they check up on ?

Indicative

Present continuous

am I checking up on ?
are you checking up on ?
is he/she/it checking up on ?
are we checking up on ?
are you checking up on ?
are they checking up on ?

Present perfect

have I checked up on ?
have you checked up on ?
has he/she/it checked up on ?
have we checked up on ?
have you checked up on ?
have they checked up on ?

Future

will I check up on ?
will you check up on ?
will he/she/it check up on ?
will we check up on ?
will you check up on ?
will they check up on ?

Future Perfect

will I have checked up on ?
will you have checked up on ?
will he/she/it have checked up on ?
will we have checked up on ?
will you have checked up on ?
will they have checked up on ?

Past continuous

was I checking up on ?
were you checking up on ?
was he/she/it checking up on ?
were we checking up on ?
were you checking up on ?
were they checking up on ?

Past perfect

had I checked up on ?
had you checked up on ?
had he/she/it checked up on ?
had we checked up on ?
had you checked up on ?
had they checked up on ?

Future continuous

will I be checking up on ?
will you be checking up on ?
will he/she/it be checking up on ?
will we be checking up on ?
will you be checking up on ?
will they be checking up on ?

Present perfect continuous

have I been checking up on ?
have you been checking up on ?
has he/she/it been checking up on ?
have we been checking up on ?
have you been checking up on ?
have they been checking up on ?

Past perfect continuous

had I been checking up on ?
had you been checking up on ?
had he/she/it been checking up on ?
had we been checking up on ?
had you been checking up on ?
had they been checking up on ?

Future perfect continuous

will I have been checking up on ?
will you have been checking up on ?
will he/she/it have been checking up on ?
will we have been checking up on ?
will you have been checking up on ?
will they have been checking up on ?

See also verbs with similar meaning: check, check in, check into, check off, check out, more ...