I cost you cost he costs we cost you cost they cost
Present continuous
I am costing you are costing he is costing we are costing you are costing they are costing
Preterite
I cost you cost he cost we cost you cost they cost
Preterite continuous
I was costing you were costing he was costing we were costing you were costing they were costing
Present perfect
I havecost you havecost he hascost we havecost you havecost they havecost
Present perfect continuous
I have been costing you have been costing he has been costing we have been costing you have been costing they have been costing
Pluperfect
I had cost you had cost he had cost we had cost you had cost they had cost
Pluperfect continuous
I had been costing you had been costing he had been costing we had been costing you had been costing they had been costing
Future
I will cost you will cost he will cost we will cost you will cost they will cost
Future continuous
I will be costing you will be costing he will be costing we will be costing you will be costing they will be costing
Future perfect
I will have cost you will have cost he will have cost we will have cost you will have cost they will have cost
Future perfect continuous
I will have been costing you will have been costing he will have been costing we will have been costing you will have been costing they will have been costing
Conditional
Present
I would cost you would cost he would cost we would cost you would cost they would cost
Present continuous
I would be costing you would be costing he would be costing we would be costing you would be costing they would be costing
Past
I would have cost you would have cost he would have cost we would have cost you would have cost they would have cost
Past continuous
I would have been costing you would have been costing he would have been costing we would have been costing you would have been costing they would have been costing