I checker you checker he checkers we checker you checker they checker
Present continuous
I am checkering you are checkering he is checkering we are checkering you are checkering they are checkering
Preterite
I checkered you checkered he checkered we checkered you checkered they checkered
Preterite continuous
I was checkering you were checkering he was checkering we were checkering you were checkering they were checkering
Present perfect
I have checkered you have checkered he has checkered we have checkered you have checkered they have checkered
Present perfect continuous
I have been checkering you have been checkering he has been checkering we have been checkering you have been checkering they have been checkering
Pluperfect
I had checkered you had checkered he had checkered we had checkered you had checkered they had checkered
Pluperfect continuous
I had been checkering you had been checkering he had been checkering we had been checkering you had been checkering they had been checkering
Future
I will checker you will checker he will checker we will checker you will checker they will checker
Future continuous
I will be checkering you will be checkering he will be checkering we will be checkering you will be checkering they will be checkering
Future perfect
I will have checkered you will have checkered he will have checkered we will have checkered you will have checkered they will have checkered
Future perfect continuous
I will have been checkering you will have been checkering he will have been checkering we will have been checkering you will have been checkering they will have been checkering
Conditional
Present
I would checker you would checker he would checker we would checker you would checker they would checker
Present continuous
I would be checkering you would be checkering he would be checkering we would be checkering you would be checkering they would be checkering
Past
I would have checkered you would have checkered he would have checkered we would have checkered you would have checkered they would have checkered
Past continuous
I would have been checkering you would have been checkering he would have been checkering we would have been checkering you would have been checkering they would have been checkering