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Present perfect continuous of cost

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Present perfect continuous

I have been costing

The present perfect continuous tense (sometimes referred to as the present perfect progressive tense) is a special tense which talks about events in the past that last into the present. It usually emphasizes the duration or amount of time that the action has been taking place. The present perfect continuous uses two auxiliary verbs in combination with a main verb.
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have been costing

you

have been costing

he/she/it

has been costing

have been costing

you

have been costing

they

have been costing

Infinitive

cost

Other verbs conjugation cost

Present "cost"	I	cost
Present Continuous "cost"	I	am costing
Simple past "cost"	I	cost
Past Continuous "cost"	I	was costing
Present perfect "cost"	I	have cost
Present perfect continuous "cost"	I	have been costing
Past perfect "cost"	I	had cost
Past perfect continuous "cost"	I	had been costing
Future "cost"	I	will cost
Future continuous "cost"	I	will be costing
Future perfect "cost"	I	will have cost
Future perfect continuous "cost"	I	will have been costing

Present perfect continuous of cost