We cannot deliver from stock.
The setback could have been worse.
They have not been able to prevent bankruptcy.
We will never be able to compete with low-wage countries.
Could you call back later?
Our competitor will never be able to offer the same quality.
Could you pay cash?
They could not pay their debts.
We have not been able to carry out the order sooner.
You could have known this.
We have not been able to expand our market share.