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    Learn Irregular verbs Cost
Choose category
Conjugate
Infinitive
cost
Past simple
cost
Past participle
cost
Gerund
costing
Conjugation of verb "To cost"
Present Simple
Affirmative
I cost.
You cost.
We cost.
He/She/It costs.
You cost.
They cost.
Negative
I do not cost.
You do not cost.
We do not cost.
He/She/It does not cost.
You do not cost.
They do not cost.
Interrogative
Do I cost?
Do you cost?
Do we cost?
Does he/she/it cost?
Do you cost?
Do they cost?


Present Simple Continuous
Affirmative
I am costing.
You are costing.
We are costing.
He/She/It is costing.
You are costing.
They are costing.
Negative
I am not costing.
You are not costing.
We are not costing.
He/She/It is not costing.
You are not costing.
They are not costing.
Interrogative
Am I costing?
Are you costing?
Are we costing?
Is he/she/it costing?
Are you costing?
Are they costing?


Past Simple
Affirmative
I cost.
You cost.
We cost.
He/She/It cost.
You cost.
They cost.
Negative
I did not cost.
You did not cost.
We did not cost.
He/She/It did not cost.
You did not cost.
They did not cost.
Interrogative
Did I cost?
Did you cost?
Did we cost?
Did he/she/it cost?
Did you cost?
Did they cost?


Past Continuous
Affirmative
I was costing.
You were costing.
We were costing.
He/She/It was costing.
You were costing.
They were costing.
Negative
I was not costing.
You were not costing.
We were not costing.
He/She/It was not costing.
You were not costing.
They were not costing.
Interrogative
Was I costing?
Were you costing?
Were we costing?
Was he/she/it costing?
Were you costing?
Were they costing?


Future Simple
Affirmative
I will cost.
You will cost.
We will cost.
He/She/It will cost.
You will cost.
They will cost.
Negative
I will not cost.
You will not cost.
We will not cost.
He/She/It will not cost.
You will not cost.
They will not cost.
Interrogative
Will I cost?
Will you cost?
Will we cost?
Will he/she/it cost?
Will you cost?
Will they cost?


Present Perfect Simple
Affirmative
I have cost.
You have cost.
We have cost.
He/She/It has cost.
You have cost.
They have cost.
Negative
I have not cost.
You have not cost.
We have not cost.
He/She/It has not cost.
You have not cost.
They have not cost.
Interrogative
Have I cost?
Have you cost?
Have we cost?
Has he/she/it cost?
Have you cost?
Have they cost?


Present Perfect Continuous
Affirmative
I have been costing.
You have been costing.
We have been costing.
He/She/It has been costing.
You have been costing.
They have been costing.
Negative
I have not been costing.
You have not been costing.
We have not been costing.
He/She/It has not been costing.
You have not been costing.
They have not been costing.
Interrogative
Have I been costing?
Have you been costing?
Have we been costing?
Has he/she/it been costing?
Have you been costing?
Have they been costing?


Past Perfect Simple
Affirmative
I had cost.
You had cost.
We had cost.
He/She/It had cost.
You had cost.
They had cost.
Negative
I had not cost.
You had not cost.
We had not cost.
He/She/It had not cost.
You had not cost.
They had not cost.
Interrogative
Had I cost?
Had you cost?
Had we cost?
Had he/she/it cost?
Had you cost?
Had they cost?


Past Perfect Continuous
Affirmative
I had been costing.
You had been costing.
We had been costing.
He/She/It had been costing.
You had been costing.
They had been costing.
Negative
I had not been costing.
You had not been costing.
We had not been costing.
He/She/It had not been costing.
You had not been costing.
They had not been costing.
Interrogative
Had I been costing?
Had you been costing?
Had we been costing?
Had he/she/it been costing?
Had you been costing?
Had they been costing?


Future Perfect
Affirmative
I will have cost.
You will have cost.
We will have cost.
He/She/It will have cost.
You will have cost.
They will have cost.
Negative
I will not have cost.
You will not have cost.
We will not have cost.
He/She/It will not have cost.
You will not have cost.
They will not have cost.
Interrogative
Will I have cost?
Will you have cost?
Will we have cost?
Will he/she/it have cost?
Will you have cost?
Will they have cost?


Conditional
Affirmative
I would cost.
You would cost.
We would cost.
He/She/It would cost.
You would cost.
They would cost.
Negative
I would not cost.
You would not cost.
We would not cost.
He/She/It would not cost.
You would not cost.
They would not cost.
Interrogative
Would I cost?
Would you cost?
Would we cost?
Would he/she/it cost?
Would you cost?
Would they cost?


Conditional Perfect
Affirmative
I would have cost.
You would have cost.
We would have cost.
He/She/It would have cost.
You would have cost.
They would have cost.
Negative
I would not have cost.
You would not have cost.
We would not have cost.
He/She/It would not have cost.
You would not have cost.
They would not have cost.
Interrogative
Would I have cost?
Would you have cost?
Would we have cost?
Would he/she/it have cost?
Would you have cost?
Would they have cost?