Cause and result: non-finite clauses
		having tried various methods
	 
	
		
		
		
		    
              Non-finite clauses
		      We can describe cause and result using non-finite clauses. Study
		        the clause in bold:
		      
                -  Having tried various other methods with
                  no success, the student decided to study online.
This is similar in meaning to:
		      
                - Because the student had tried various other
                  methods with no success, he decided to study online.
Note the non-finite clause beginning with having + participle often indicates that the second event was a result of the first. To negate a non-finite clause of this type, use not.
		      
                - Not having had enough oxygen at birth,
                  Nikki had learning difficulties.
 
	     
		
          1.
            Non-finite clauses.
		  Rewrite the following
		    sentences by changing the finite clause in bold into a non-finite clause.
		  For example:
		  Because he had swum with the dolphins, Nikki learned to speak.
              Having swum with the dolphins, Nikki learned to speak.