to ask
to inquire
to query
to question
to probe
to interrogate
to quiz
to pry
to investigate
to examine
to explore
to consult
to wonder
to check
to confirm
to clarify
to doubt
to survey
to interview
to discuss

to seek
to search
to review
to reconsider
to reassess
to cross-examine
to reexamine
to scrutinize
to inspect
to assess
to evaluate
to analyze
to deliberate
to consider
to ponder
to reflect
to speculate
to hypothesize
to theorize
to suppose

to dispute
to contest
to argue
to challenge
to confront
to demand
to require
to solicit
to debate