yeah, there were a few undocumented changes to verbs in 10.1. I discussed them recently on my inform7tips mastodon account.
Inform 7 verbs prologue: for saying only, for meaning only
10.1 verb changes 1: multi-word verb creation
- only the first word of a verb is changeable by conjugation (not counting ‘to be able to’): attempting to define an irregular multi-word verb is now a syntax error
- in 10.1, with a multi-word verb, values of kind verb are created for not just the whole thing with prepositions, but also another for the first word alone
- but only the first word version is usable in adaptive text. In 9.3/6M62, you had to use any trailing preposition in adaptive text; in 10.1 you must not
10.1 verb changes 2: automatic creation of variant verbs
- present progressive tense and passive voice versions of author-defined multi-word verbs associated with relations are no longer created (they’re still created for single-word verbs)
10.1 verb changes 3: the project index
- 10.1’s project index for verbs includes the contractions; 9.3 had those contractions but didn’t include them in its project index
- 10.1’s project index omits prepositions; the only multi-word verbs are ‘To be able to’, ‘To be able to be’, ‘To be able to see’, ‘To be able to touch’
- 10.1’s project index doesn’t include ‘for saying only’ verbs