while ı was walking on the street ı saw my old friend

while ahmet was surfing on the net his brother  was having dinner

while tom was watching the news on tv jonathan was doing his homework 

while my motker was ironning the clothes my brother was sleeping last night

we were collecting rubbish while murat was having breakfast at nine twenty this morning

while ı was riding a bicycle ezgi and çağla were going on safari at three p.m. yesterday