This vase is so beautiful. I can’t help buying it. ( Adverbial clause of result )
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It is necessary for the problem to be solved without delay. ( Subject clause )
She doesn’t like people staring at her. ( Passive voice )
“ Watch the milk and don’t let it boil over,” he said to me. ( Indirect speech )
There was a storm, so they couldn’t arrive earlier. ( Subjunctive mood )