Hello...<br/><br/>Are the following all true?<br/>* means ungrammatical...<br/><br/>(1)<br/>a. I tried to push back in the bolt.<br/>b. *I tried to push back the bolt in.<br/><br/>(2)<br/>a. Bring on over your friend.<br/>b. *Bring on your friend over.<br/><br/>(3)<br/>a. They brought back home the children.<br/>b. *They broght back the children home.