Matching Pairs topics of englishOnline version resolver by SANTIAGO ESTRADA PICHARDO 1 Past Perfect Continuous 2 Present Perfect 3 Third Conditional 4 Present Perfect Continuous 5 Zero Conditional 6 Simple Past 7 First Conditional 8 Past Perfect 9 Second Conditional They have lived in this city for five years. He has been studying for three hours. If it rains tomorrow, we will stay indoors. If I won the lottery, I would travel the world. They had been waiting for an hour before the bus arrived. If you heat water to 100 degrees Celsius, it boils She had already eaten when I arrived. I visited my grandmother last weekend. If I had known about the party, I would have gone.