Indicative
Present Indefinite
I cost
you cost
he/she/it costs
we cost
you cost
they cost
Present Continuous
I am costing
you are costing
he/she/it is costing
we are costing
you are costing
they are costing
Present Perfect
I have cost
you have cost
he/she/it has cost
we have cost
you have cost
they have cost
Present Perfect Continuous
I have been costing
you have been costing
he/she/it has been costing
we have been costing
you have been costing
they have been costing
Past Indefinite
I cost
you cost
he/she/it cost
we cost
you cost
they cost
Past Continuous
I was costing
you were costing
he/she/it was costing
we were costing
you were costing
they were costing
Past Perfect
I had cost
you had cost
he/she/it had cost
we had cost
you had cost
they had cost
Past Perfect Continuous
I had been costing
you had been costing
he/she/it had been costing
we had been costing
you had been costing
they had been costing
Future Indefinite
I will cost
you will cost
he/she/it will cost
we will cost
you will cost
they will cost
Future Continuous
I will be costing
you will be costing
he/she/it 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/she/it 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/she/it will have been costing
we will have been costing
you will have been costing
they will have been costing
Conditional
Conditional Present
I would cost
you would cost
he/she/it would cost
we would cost
you would cost
they would cost
Conditional Present Continuous
I would be costing
you would be costing
he/she/it would be costing
we would be costing
you would be costing
they would be costing
Conditional Perfect
I would have cost
you would have cost
he/she/it would have cost
we would have cost
you would have cost
they would have cost
Conditional Perfect Continuous
I would have been costing
you would have been costing
he/she/it would have been costing
we would have been costing
you would have been costing
they would have been costing