Doubts can also arise in the case of free relative clauses, formed with "who(m)", "who(m)ever" or "who(m)soever". Modern guides to English usage say that the relative pronoun should take the case appropriate to the relative clause, not the function performed by that clause within an external clause. For example, it is correct to write "I'll talk to whoever" "whomever" "will listen", since "whoever" is the subject of "will listen" (regardless of the fact that the entire clause "whoever will listen" serves as the object of the preposition "to"). On the other hand, "Whomever you choose will suit me" is correct, since "whomever" is now the object of "choose" (despite the fact that the entire relative clause is the subject of "will suit").