further expenditure is expected in a few years in addition to that initially by the end i believe it is likely that additional sums be needed to complete the project
Further expenditure is expected in a few years' time, in addition to that initially planned by the programme, and I believe it is likely that additional sums will be needed to complete the project.
Further expenditure is expected in a few years' in addition to that initially by the and I believe it is likely that additional sums be needed to complete the project.