cenai ("k") conj. "if it be that" (VT49:19). This word presupposes ce = "if"; other sources rather make qui the word for "if", whereas ce or cé is used = "maybe".
Quenya
qui
if
qui
conjunction. if
qui
conjunction. if, when
iqui
conjunction. if
iqui
conjunction. if
cenai
if it be that
cé
may be
cé ("k"), also ce ("k") "may be" (VT49:19, 27), particle indicating uncertainty (VT42:34; ce in Bill Welden's note is a misspelling, VT44:38, but the short form ce does occur in other texts, cf. VT49:18-19). In VT42, Welden wrote that Tolkien altered ké to kwí (or kwíta, q.v.), but Welden later noted that "it does not follow that because the form was changed in another sentence it would necessarily have been corrected in the examples cited" (VT44:38). So cé/ké may still be a conceptually valid form. (The forms in kw- rather than qu- seem abnormal for Quenya, at least as far as spelling is concerned.) In another conceptual phase, cé was also used = "if" (VT49:19), but this conjunction appears as qui elsewhere. Examples of cé, ce meaning "if" (said to be "usually [used] with aorist") include cé mo quetë ulca ("k", "q") "if one speaks evil", cé tulis, nauvan tanomë ("k") "if (s)he comes, I will be there" (VT49:19), cé mo… "if one…", ce formenna "if northwards" (VT49:26)
mai
if
mai (2) conj. "if" (PE14:59 cf. VT49:20; possibly obsoleted by #1 above; for "if", Tolkien later used qui)
cenai
conjunction. if it be that
cé
conjunction. if
que
conjunction. if
quí(ta)
conjunction. if
quí(ta) la tuldes, nánë márië (nin)
[if he had not come], it was well to me (I was glad)
it(ë) Speculative
adverb. if
qui conj. "if" (VT49:19)