PAST SImple vs Past Perfect

saw, had gone

 had seen, went

seen, went

 saw, gone

asked, saw

had asked, had seen

   had asked, saw

 asked, had seen

 ate....made...

  eats...makes

 ate...had made

 had eaten...made 

 brought... had not order

brought...had not ordered

had brought...had not ordered

 had brought....did not order

 has already come....arrived

have come already....arrived

 had already come.....arrived

already came..had arrived

 found... has flew

 found....had flown

had found...flew

 has found...has flown

had buys....came

 had bought....came

 bought.....had come

bought....came

 had done....went

  has done...went

did...had gone

had done....had gone

cleaned...had come

 had cleaned....come

 had cleaned...came

cleaned..came

 found...lost

  had fouhd...lost

had find...lost

found...had lost

 bought....had seen

  ````````````

had bought...saw

  bought....had saw

 had bought...seen

had not finished ...........began

not finished had begun

doesn't finish has began

has not finished begin