Từ đồng nghĩa của says so

affirms declares asserts avers avows states attests certifies maintains pronounces swears avouches guarantees asseverates professes alleges claims contends insists lays down proclaims promises protests purports testifies vows warrants pledges acknowledges announces cinches clinches encourages establishes ices okays predicates repeats rubber-stamps sets sustains verifies vouches witnesses crosses heart gives an undertaking locks up nails down puts on ice swears on bible has a lock on swears up and down confirms assures deposes undertakes agrees covenants answers for plights swears an oath binds oneself takes an oath gives your word corroborates supports substantiates admits owns proves stipulates commits upholds confesses engages sponsors backs contracts ensures cosigns averts assents binds espouses underwrites attests to spiels recognizes sings spouts soapboxes stumps recognises constates allows croons subscribes accedes obligates secures swears to is responsible for are responsible for pledges oneself signs for gets behind puts forth gives an affidavit bears testimony acts as a witness stands up for comes out opens up makes out owns up talks big commits oneself solemnly promises gives an assurance lives up to gives an undertaking to gets on soapbox gets off your chest blows hot air acts as if promises under oath trusts swears on the Bible swears blind gives witness depends on relies on swears by makes a deposition has confidence in makes an affidavit gives one's word swears to God states under oath concedes grants swears under oath makes a commitment undertakes solemnly gives word of honor gives your word of honour

testifies confirms corroborates demonstrates proves shows attests bespeaks deposes establishes evidences indicates substantiates swears witnesses attests to bears out reveals announces appears argues betokens evinces mounts sings tokens warrants witnesses to vouches for gives facts makes evident points to swears to crosses heart gives one's word stands up for swears up and down

advocates champions supports recommends advises endorses favors favours backs prescribes promotes upholds urges commends suggests encourages proposes defends espouses justifies countenances indorses patronises patronizes pushes sanctions advances furthers plugs touts blesses bolsters boosts sponsors vindicates approves of argues for presses for speaks for subscribes to vouches for lobbies for pleads for plumps for plunks for roots for sides with stumps for campaigns for goes for goes to bat for goes with stands up for braces up builds up campaigns on behalf of holds with runs interference for spreads around gets on bandwagon gives a leg up gives a lift holds a brief for rides shotgun

says softly says something says something about says something in response to says something untrue says sorry says slowly says roughly says quickly says parrot-fashion says over and over says out loud