Converting a verb to noun form

1

I would like to convert a verb to its noun form in the suggestions. Is there a way I can achieve this.

<marker>
    <token postag="VB.*" postag_regexp="yes"><exception postag="NN.*" postag_regexp="yes"/></token>
</marker>
<token postag="SENT_END"/>
<message><suggestion><match no="1" postag="NN.*" postag_regexp="yes"/><suggestion></message>
<example correction="development">Created a map for excellent <marker>developed</marker>.</example>
2

I don’t think this is possible. There’s no connection between a verb and its noun in the data LT uses, I think.