"forgo it" is correct and can be used in written English.
It means to give up or abstain from something. Example: I knew that eating too much cake would make me sick, so I decided to forgo it and stick to just one slice.
Eleven months into this young presidency, a set of Obama principles is beginning to emerge: a philosophy about when to use American military force, when to forgo it and when to threaten its use to back up diplomatic pressure.
Turkey's response to these entreaties has been to ask how the United States, which is one of the few democratic countries in the world that still uses the death penalty, can ask another country to forgo it, and even to wonder how the United States, with its campaign against terrorism, can make a case against the execution of Mr. Ocalan.
And there is no reason to forgo it this year.
And when it is not, they will gladly forgo it.
And we are not prepared to forgo it".
Even the critics of widespread testing are not necessarily advocating that people forgo it.
And many young adults, he said, are postponing marriage rather than forgoing it altogether.
I had been either inflating it myself or forgoing it altogether.
Forgoing it altogether will cost the Treasury £750m, but may be an astute pre-election measure aimed at shoring up Labour's middle England vote.
The median age of first-time newlyweds is at an all-time high (which may make the marriage-rate decline appear sharper than it actually is: some are delaying marriage rather than forgoing it entirely).
The median age of first-time newlyweds is at an all-time high (which may make the marriage-rate decline appear sharper than it actually is: many may be delaying marriage rather than forgoing it entirely).
