I don't cost you don't cost she doesn't cost we don't cost you don't cost they don't cost
Present continuous
I'm not costing you aren't costing she isn't costing we aren't costing you aren't costing they aren't costing
Preterite
I didn't cost you didn't cost she didn't cost we didn't cost you didn't cost they didn't cost
Preterite continuous
I wasn't costing you weren't costing she wasn't costing we weren't costing you weren't costing they weren't costing
Present perfect
I haven't cost you haven't cost she hasn't cost we haven't cost you haven't cost they haven't cost
Present perfect continuous
I haven't been costing you haven't been costing she hasn't been costing we haven't been costing you haven't been costing they haven't been costing
Pluperfect
I hadn't cost you hadn't cost she hadn't cost we hadn't cost you hadn't cost they hadn't cost
Pluperfect continuous
I hadn't been costing you hadn't been costing she hadn't been costing we hadn't been costing you hadn't been costing they hadn't been costing
Future
I won't cost you won't cost she won't cost we won't cost you won't cost they won't cost
Future continuous
I won't be costing you won't be costing she won't be costing we won't be costing you won't be costing they won't be costing
Future perfect
I won't have cost you won't have cost she won't have cost we won't have cost you won't have cost they won't have cost
Future perfect continuous
I won't have been costing you won't have been costing she won't have been costing we won't have been costing you won't have been costing they won't have been costing
Conditional
Present
I wouldn't cost you wouldn't cost she wouldn't cost we wouldn't cost you wouldn't cost they wouldn't cost
Present continuous
I wouldn't be costing you wouldn't be costing she wouldn't be costing we wouldn't be costing you wouldn't be costing they wouldn't be costing
Past
I wouldn't have cost you wouldn't have cost she wouldn't have cost we wouldn't have cost you wouldn't have cost they wouldn't have cost
Past continuous
I wouldn't have been costing you wouldn't have been costing she wouldn't have been costing we wouldn't have been costing you wouldn't have been costing they wouldn't have been costing