Do these sentences have the same meaning ?

What she saw was a machine





she saw what was a machine








she saw the thing which was a machine





''''''''''''''''''''''''''''''''''''''...





and i also want to know can i use " are these sentences same ? instead of " do these sentences have the same meaning ?"



What she saw was a machine <<<correct





she saw what was a machine <<<not correct, it should be ''She saw a machine"





she saw the thing which was a machine<<<grammatically correct but there's something that makes it something, idk....








"Are these sentences the same?" is more correct that the second




They are all grammatically correct. but





the second one makes me think that it is no longer a machine, it has been damaged beyond repair.





The third one as well has this effect.. Unless you are looking for special effect, the best way to write the sentence is: She saw a machine.




meaning is same for all, but grammatically first is right other two are wrong.


and second part of your question you can use both, as both are right.


but the first one looks better.