Crossref Citations
                  This article has been cited by the following publications. This list is generated based on data provided by Crossref.
                                
                                    
                                    Perkins, Michael R.
                                  1982.
                                  The core meanings of the English modals.
                                  
                                  
                                  Journal of Linguistics, 
                                  Vol. 18, 
                                  Issue. 2, 
                                
                                    p. 
                                    245.
                                
                                
                        
                        
                        
                        
                                
                                    
                                    Tregidgo, P.S.
                                  1982.
                                  Must and may: Demand and permission.
                                  
                                  
                                  Lingua, 
                                  Vol. 56, 
                                  Issue. 1, 
                                
                                    p. 
                                    75.
                                
                                
                        
                        
                        
                        
                                
                                    
                                    Hirtle, W. H.
                                     and 
                                    Curat, V. N.
                                  1986.
                                  THE SIMPLE AND THE PROGRESSIVE: ‘FUTURE’ USE.
                                  
                                  
                                  Transactions of the Philological Society, 
                                  Vol. 84, 
                                  Issue. 1, 
                                
                                    p. 
                                    42.
                                
                                
                        
                        
                        
                        
                                
                                    
                                    Werth, Paul N.
                                  1992.
                                  Who Climbs the Grammar-Tree.
                                  
                                  
                                  
                                  
                                  
                                
                                    p. 
                                    307.