However, you can express degrees of fluency using other words or phrases:
* More fluently (comparative)
* Most fluently (superlative)
* More effortlessly
* Most effortlessly
* With greater fluency
* With the greatest fluency
* More smoothly
* Most smoothly
For example:
* "She spoke more fluently in French than she did in Spanish."
* "He gave the presentation most fluently of all the speakers."
* "The author writes with greater fluency in this novel than in her previous works."