success

[mengta]

Though we have had some success duplicating the process in the laboratory, i t cannot be said the process is totally correct.

do i need an "in" before duplicating? why or why not?

thanks

[Temico]

You can add "in" if you like and if you don't, it is still understood. There are many sentences written like that. The most recent usage is , "The under-manned law enforcers didn't have much success (in) stopping the looters nor the snipers in New Orleans."