1. While we were walking home (121) from school yesterday, it rained very suddenly. 2. What a storm it was! 3. We were talking about the lessons in geometry, and were looking at these books about the German language. 4. So we did not see the clouds in (on) the sky. 5. Well, we forgot about examinations and began to wonder where to go. 6. We did not know whether we had enough time to run even to Grandfather's house before it would rain. 7. Many papers fell out of our books, and the wind caught them. 8. The wind chased them away from us, and they seemed to dance around in the air. 9. However, we easily caught and gathered them, and then we ran forward. 10. Suddenly it thundered very loudly, and we saw the brilliant lightning in the sky. 11. We almost closed our eyes for the lightning. 12. Big drops of rain fell heavily and struck the dust violently. 13. The air was heavy and still then, and the storm immediately followed the few drops of rain. 14. We hastened across the street, and ran faster and faster. 15. We were exhausted (122) and our clothes were exceedingly wet before we were in the house. 16. The rain was dropping from the roof, but we ran through it, and knocked on the door. 17. We rested some time here, before going home.

LESSON XXVII.

THE INTERROGATIVE TEMPORAL ADVERB

123. The interrogative temporal adverb, related to the interrogative pronoun kiu, is kiam, when, at what time?

Kiam li serĉos min? When will he look for me?
Oni miras kiam li venos, they wonder when he is coming (will come).
Kiam falis tiuj gutoj da pluvo? When did those drops of rain fall?

THE PERFECT TENSE.

124. The compound tense formed by using the past active participle with the present tense of esti is called the perfect tense. It differs from the aoristic past tense (35) and from the imperfect (113) by expressing an act or condition as definitely completed or perfected. The conjugation of vidi in the perfect tense is as follows:

mi estas vidinta, I have seen (I am having-seen).
vi estas vidinta, you have seen (you are having-seen).
li (ŝi, ĝi) estas vidinta, he (she, it) has seen (is having-seen).
ni estas vidintaj, we have seen (we are having-seen).
vi estas vidintaj, you have seen (you are having-seen).
ili estas vidintaj, they have seen (they are having-seen).

THE PREPOSITION ĈE.

125. The general situation of a person, object or action is expressed by the use of the preposition ĉe, at, at the house of, in the region or land of, among, with, etc.: