could 0102 # adunatos {ad-oo'-nat-os}; from 1 (as a negative particle) and 1415; unable, i.e. weak (literally or figuratively); passively, impossible: -- {could} not do, impossible, impotent, not possible, weak.
could 1410 # dunamai {doo'-nam-ahee}; of uncertain affinity; to be able or possible: -- be able, can (do, + -not), {could}, may, might, be possible, be of power.
could 1415 # dunatos {doo-nat-os'}; from 1410; powerful or capable (literally or figuratively); neuter possible: -- able, {could}, (that is) mighty (man), possible, power, strong.
could 1689 # emblepo {em-blep'-o}; from 1722 and 991; to look on, i.e. (relatively) to observe fixedly, or (absolutely) to discern clearly: -- behold, gaze up, look upon, ({could}) see.
could 2480 # ischuo {is-khoo'-o}; from 2479; to have (or exercise) force (literally or figuratively): -- be able, avail, can do([-not]), {could}, be good, might, prevail, be of strength, be whole, + much work.
could 3045 ## yada` {yaw-dah'}; a primitive root; to know (properly, to ascertain by seeing); used in a great variety of senses, figuratively, literally, euphemistically and inferentially (including observation, care, recognition; and causatively, instruction, designation, punishment, etc.) [as follow]: -- acknowledge, acquaintance(-ted with), advise, answer, appoint, assuredly, be aware, [un-]awares, can[-not], certainly, comprehend, consider, X {could} they, cunning, declare, be diligent, (can, cause to) discern, discover, endued with, familiar friend, famous, feel, can have, be [ig-]norant, instruct, kinsfolk, kinsman, (cause to let, make) know, (come to give, have, take) knowledge, have [knowledge], (be, make, make to be, make self) known, + be learned, + lie by man, mark, perceive, privy to, X prognosticator, regard, have respect, skilful, shew, can (man of) skill, be sure, of a surety, teach , (can) tell, understand, have [understanding], X will be, wist, wit, wot
could 3201 ## yakol {yaw-kole'}; or (fuller) yakowl {yaw-kole'}; a primitive root; to be able, literally (can, could) or morally (may, might): -- be able, any at all (ways), attain, can (away with, [-not]), {could}, endure, might, overcome, have power, prevail, still, suffer.
could 3546 ## k@hal (Aramaic) {keh-hal'}; a root corresponding to 3201 and 3557; to be able: -- be able, {could}.
could 5074 ## nadad {naw-dad'}; a primitive root; properly, to wave to and fro (rarely to flap up and down); figuratively, to rove, flee, or (causatively) to drive away: -- chase (away), X {could} not, depart, flee (X apace, away), (re-)move, thrust away, wander (abroad, -er, -ing).
could 5234 ## nakar {naw-kar'}; a primitive root; properly, to scrutinize, i.e. look intently at; hence (with recognition implied), to acknowledge, be acquainted with, care for, respect, revere, or (with suspicion implied), to disregard, ignore, be strange toward, reject, resign, dissimulate (as if ignorant or disowning): -- acknowledge, X {could}, deliver, discern, dissemble, estrange, feign self to be another, know, take knowledge (notice), perceive, regard, (have) respect, behave (make) self strange(-ly).