I have tried to make corrections to my answers that were wrong. Kindly excuse me if there are still mistakes.
यदा अहं बस्निस्थानकं गतवान् तदा लोकयानं गच्छति स्म।
When I went to the bus station the bus was going.
बाल्ये वयं बहु खेलामः स्म।
In childhood we used to play lot.
यौवने वयं समयनाशं न कुर्मः स्म।
In youth we were not wasting time.
यदा वयं सम्स्कृतमेलां गतवन्तः तदा भाषणं प्रचलति स्म।
When we wen to the Samskrut meeting the speech was going on.
रामः बाल्ये एव बहु शूरः अस्ति स्म।
Rama used to be very brave in childhood itself
समुद्रविहारे वयं बहु मोदामः स्म।
In the sea-outing we were enjoying a lot.