Examples of using It is difficult to say in English and their translations into Greek
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                        Colloquial
                    
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                        Official
                    
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                        Medicine
                    
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                        Ecclesiastic
                    
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                        Financial
                    
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                        Official/political
                    
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                        Computer
                    
It is difficult to say how old game of badminton.
It is difficult to say.
I don't know why it is difficult to say Um….
It is difficult to say.
It is difficult to say how true this is. .
It is difficult to say exactly when the ISIL march into Iraq began.
It is difficult to say, omdat I hate you so bad.
Today it is difficult to say exactly what a wax moth is  useful for.
It is difficult to say what will happen hereafter.
It is difficult to say now how it  cameminiature domestic dogs.
It is difficult to say what is….
It is difficult to say which form will it  obtain during the nearest time.
It is difficult to say this(that Leicester can win the title).
It is difficult to say no to  an honest request.
She is  an intensely private person, though, so it is difficult to say.
On what ground he was  appointed, it is difficult to say.
It is difficult to say what has happened.
It is difficult to say to  what extent.
It is difficult to say when that will happen.
Stalin: So far it is difficult to say.