How to Combine Two Sentences together into One Complex Sentence? His advice was that children should go to school at an early age. His advice has proven very helpful now. Now I am going to combine them together into a single sentence in an formal essay: 1.His advice , which has proven very helpful now, is that children should go to school at an early age. Good. But it focuses on his advice instead of the result. 2.His advice, which is that children should go to school at an early age, has proven very helpful. I am not satisfied with 'which is that' because I think it's redundant and verbose 3.His advice, i.e. children should got to school at an early age, has proven very helpful. I am not very confident whether this is grammatically correct 4.His advice, children going to school at an early age, has proven very helpful I am not sure if this is correct 5.His advice about sending children to school at an early age has proven very helpful. This is good as I think. But sometimes its difficult to find a verb to connect 2 different partThink about the below 2 sentences: 1. His advice is that I should find a better job 2. His advice has proven to be helpful Hi advice about ___ has proven to be helpful => see , it's hard to fill the blank with the information provided in the first sentence. Hi advice, which is that I should find a better job, has proven to be helpful Is there any better way to say it? (of course we can combine them with an 'and'. For example, He advised that I should find a better job and it has proven to be helpful. This is natural and fluent, but I am just trying to figure a way to combine sentences using sub-clauses instead of using conjunction words ;-))