Model: if i saw this film, i would tell you about it. if i had seen this film, i would have told you about it. 1. if you chose this room, you would watch tv. 2. if you investigate this problem, you would answer this question. 3. if he measured the temperature, he would explain this phenomenon. 4. if they unified the fact they would prove the fact. 5. if they processed the data, they would have the results.

If I had seen this film, I would have told you about it.

1. If you had chosen  this room, you would watched TV. 2. If you  have investigated  this problem, you would have answered this question. 3. If he had measured the temperature, he would has explained this phenomenon. 4. If they had unified the fact

they would have  proved the fact. 5. If they had processed the data, they would have had the results.