In the given sentence,
Verb = (am /is /are/ was /were ) +to + verb1
Rule:
Subject + (am /is /are/ was /were ) +to + Be + verb3
In the given sentence,
Verb = (am /is /are/ was /were ) +to + verb1
Rule:
Subject + (am /is /are/ was /were ) +to + Be + verb3