take for granted, presume, simulate, accept, sham, acquire, usurp, take on, arrogate, feign, more...

doubt, question, disbelieve, verify, confirm

presume, suppose, supposition, hypothesis, presumption, assumption, more...

free, constant, variable, interval, corollary, joint, yield, part, current, integral, invariant

to take on,   to take for granted,   take the form of,   make assumption,   believes to be true,   we believe,   take a position,   take into own hands,   take on, in a sense,   take on a role