Using Stanford NLP I have a series of parses - for example
"They will have been going to the park."
to (among other things) the Verb Phrase
(MD will)(VP (VB have)(VP (VBN been)(VP (VBG going)
MD: Modal Verb VB: Verb, base form, VBD: Verb, past tense VBG: Verb, gerund or present participle VBN: Verb, past participle VBP: Verb, non-3rd person singular present VBZ: Verb, 3rd person singular present
I was assuming there must be a straight translation from a series like
(MD)(VP (VB)(VP (VBN)(VP (VBG))
to a tense such as Perfect Continuous future.
Is this sound logic?
If so, does such a mapping exist anywhere?
(I'm not looking for any kind of software answer or recommendation, merely confirmation or otherwise that such a mapping either exists or could exist.)