によって eder mendez 5年前.
 689
 
                    
                        COULD HAVE
                        Esta es una muestra de mapa mental
                        
                             
                            
                         
                     
                 
             
            
                
                    
                    Topic flotante
3.- We couldn't have won even We  training hard
2.- She couldn't have traveled by plane She is afraid of heights
1.- I couldn't have arrived to the party even if I had drove very fast
3.- We could have had a dog but we don't behave well
2.- She could have passed to the exam but she didn’t studied enough
1.-  He could have bought a new car but he didn't save enough.
EXAMPLES
SOMETHING THAT WAS POSSIBLE IN THE PAST
OR THAT HAD THE ABILITY  TO  DO  SOMETHING IN THE PAST, BUT DID NOT DO
COULD HAVE
NEGATIVE
+ COULDN'T HAVE + PAST PARTICIPLE
AFFIRMATIVE
+ COULD HAVE    +  PAST  PARTICIPLE
GRAMMAR
+      COULD   HAVE     +   VERB   PAST    PARTICIPLE
WHAT IS IT FOR?
It is used hypothetically to talk about