| Verbs with modal auxiliaries | 
                    
                      | The following types of modal auxiliaries are identified | 
                    
                      | 
                        
                          | (i) | Definitive or obligatory |  
                          | (ii) | Negative |  
                          | (iii) | Probabilitative |  | 
                    
                      |  | 
                    
                      | Definitive or obligatory | 
                    
                      |  | 
                    
                      | {- a  u}  -a  u | 
                    
                      |  -a  u occurs with the verbs. | 
                    
                      |  | 
                    
                      | be:ra    ni:yu    na:  e    biriya    e:ndeka  u 1         2         3         4            5
 | 
                    
                      |  | 
                    
                      | ‘Byra,    tomorrow    morning    you    should    get    up    early’ 1             3                         2          5                         4
 | 
                    
                      |  | 
                    
                      | (i)   St + | 
                    
                      | 
                        
                          | pa:y-a  u |  | > | (R. 1) |  
                          | pa:ya u |  |  | ‘should run’ |  
                          | pa:r-a  l |  | > | (R. 1) |  
                          | pa:ra u |  |  | ‘should fly’ |  | 
                    
                      |  | 
                    
                      | (ii)   St. + Link 1 + | 
                    
                      | 
                        
                          | a  a-k-a  u |  | > |  |  
                          | a aka  u |  |  | ‘should peal’ |  
                          | a  a-k-a  u |  | > |  |  
                          | a aka  u |  |  | ‘should measure’ |  |