"I must finish today."
Translation:Я мушу закінчити сьогодні.
Just to experiment I put я має закінчити ...... which means exactly the same thing (?) and should therefore be covered as an allowable answer (in my view). Interestingly English 'I have to' is now allowed (correctly in my view) for я мушу ...... one of many inconsistencies but hardly the most blatant....!