Conjugate Acids and bases

Is it correct to state that the conjugate base of a strong acid will be a very weak base, and vice versa. for example HClO4 and ClO4-
But the congugate base of a weak acid wiil be a weak base?
for example ammonium and amonia or acetic acid and acetate

Im confused because i see a lot of articles online saynig tha the conjugate of somthing strong will be weak and vice versa but theres also contradicting evidence…


hey from what i know about the strenght of conjugate acid and base is that the stronger the acid the weaker its conjugate base and the stronger the base the weaker its conjugate acid .