Complete the sentences using the proper form of the verbs in the subjunctive mood. translate the sentences. 1 if the investigating officer (not to find) this witness, it (to be) difficult to investigate the crime. 2 if they (to ban) the sale of alcohol, there (may be) less violence. 3 he (not to be arrested) if he (not to try) to leave the country. 4 it is natural that the process of investigation (to begin) with examining the scene of the crime. 5 it is essential that different investigation methods (to use) with regard of different crimes. 6 it is necessary that investigation bodies (not to use) any drugs.