Indicative
Present Indefinite
I check back
you check back
he/she/it checks back
we check back
you check back
they check back
Present Continuous
I am checking back
you are checking back
he/she/it is checking back
we are checking back
you are checking back
they are checking back
Present Perfect
I have checked back
you have checked back
he/she/it has checked back
we have checked back
you have checked back
they have checked back
Present Perfect Continuous
I have been checking back
you have been checking back
he/she/it has been checking back
we have been checking back
you have been checking back
they have been checking back
Past Indefinite
I checked back
you checked back
he/she/it checked back
we checked back
you checked back
they checked back
Past Continuous
I was checking back
you were checking back
he/she/it was checking back
we were checking back
you were checking back
they were checking back
Past Perfect
I had checked back
you had checked back
he/she/it had checked back
we had checked back
you had checked back
they had checked back
Past Perfect Continuous
I had been checking back
you had been checking back
he/she/it had been checking back
we had been checking back
you had been checking back
they had been checking back
Future Indefinite
I will check back
you will check back
he/she/it will check back
we will check back
you will check back
they will check back
Future Continuous
I will be checking back
you will be checking back
he/she/it will be checking back
we will be checking back
you will be checking back
they will be checking back
Future Perfect
I will have checked back
you will have checked back
he/she/it will have checked back
we will have checked back
you will have checked back
they will have checked back
Future Perfect Continuous
I will have been checking back
you will have been checking back
he/she/it will have been checking back
we will have been checking back
you will have been checking back
they will have been checking back
Conditional
Conditional Present
I would check back
you would check back
he/she/it would check back
we would check back
you would check back
they would check back
Conditional Present Continuous
I would be checking back
you would be checking back
he/she/it would be checking back
we would be checking back
you would be checking back
they would be checking back
Conditional Perfect
I would have checked back
you would have checked back
he/she/it would have checked back
we would have checked back
you would have checked back
they would have checked back
Conditional Perfect Continuous
I would have been checking back
you would have been checking back
he/she/it would have been checking back
we would have been checking back
you would have been checking back
they would have been checking back