I’d argue ‘f’ they don’t press hard but they lightly touch
Bro what are you doing with your lips? “F” is top teeth on lower lip.
My front lip is over my teeth when I say it, and it is touching the bottom lip.
you can also form an /s/ with various parts of the tongue and mouth but it’s generally held to be an alveolar bladal fricative.
That would interrupt airflow would it not?
You don’t purse the lips together, they’re lightly touching allowing air to go through
Not if your lips just touch lightly in the middle and the air flows around the sides.
Maybe it’s a regional thing, but that’s also how I say that sound.
Could be regional yeah. Interesting!
Yeah - I mean, I can say an f-word like “fountain” without lowering my upper lip and (to my ears at least) it sounds almost the same if not identical, but I have to do it consciously and it feels unnatural.
What the pfuck are you pfrattling on about?