You went to sleep during the lecture. This suggests that you should go to bed earlier tonight. ( Appositive clause )
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We issued these instructions in writing. We were afraid that a spoken message might be misunderstood. ( Adverbial clause of purpose )
Tom was a powerful swimmer. He always won the race. (Adverbial clause of result )
The pupils had been watching the performance. They started to applaud. ( Attributive clause )
Some foot steps led to the garden. Mr. Green saw them. He just returned home from work. ( Two attributive clauses )