We hoped to have done with the work before the holidays.
They promised (us) that the work should be done before Saturday.
I will be through with my work by tomorrow.
I'll be through with my work by tomorrow.
I will start working at the end of the long holiday.
I must make shift to finish this work by tomorrow.
The work must be finished before noon.
The work has to be finished before noon.
The work must be completed by tomorrow.
It was decided that I will work from the day after tomorrow.