Maybe she meant the topic of the usage of Gerunds and infinitives, one that get many learners really stumped.
To this special case, I would translate into "I like to walk the dogs in the park/at the park."
I have seen it usually this way, and it makes a whale of a sense. Because it expresses an habitual preference
There are some grammar points to it, anyway I stuck only to the samples that I found, and the first of the following sites I am letting you know.
And my little experience with English.http://www.grammaring.com/to-infinitive ... -cant-bearhttp://learningenglish.voanews.com/cont ... 11996.htmlhttp://www.englisch-hilfen.de/en/gramma ... nitive.htm
The use of such verbs may require some training and use of them. With time one gets the hang of it.