Potentiality of being (Seinkönnen, lit. can-be, potential-to-be), 86-87, 122, 143-148, 153, 173, 186-188, 191-195, 221, 231-236, 250-255, 257, 262-270, 277-280, 287-289, 298-302, 305-313, 334, 336-339, 341-344, 359, 363-365, 382-383, 414, et passim; authentic, 233, 235, 267-301 (II.II), 302, 313, 317, 322, 343; chosen, 288, 298, 394; existentiell, 260, 280, 313, 385; factical, 145, 187, 268, 280, 298, 306, 325, 341-342; ontic, 260; ownmost, 163, 181, 188, 191, 221, 228, 250-255, 259, 262-263, 265, 267, 273, 276-279, 287-288, 296, 299, 306-308, 317, 325, 336-337, 339, 348; projected potentiality-of-being, 336-337, 365; whole potentiality-of-being, 264, 266, 303, 317; Dasein as potentiality-of-being, 143, 145, 191, 231, 250, 252, 264-265, 277, 284, 287, 312-313, 337; Dasein as delivered over to its potentiality-of-being, 383; as something for the sake of which, 86, 191, 193-194, 334, 336, 359, 412, 414; of Others, 264; potentiality-for-being-guilty, 289, 306-307; potentiality-of-being-in-the-world, 144, 179, 187, 191-192, 228, 252, 296, 412; in the ‘truth’, 363; potentiality-of-being-one’s-Self, 175, 184, 267-269, 273-275, 294, 298, 307, 316, 322-323; Being-a-whole, 233-235, 237, 266, 301-333 (II.III), 345, 372. See also future; meaning; possibility; project (BT)