I have trouble with "sixths".

My children's optometrist is a place called "Tropical Optical". I can't do it.

Months. The S after the TH as in THink vs THe, is difficult.

Stumbled on this tongue twister in the wild. It's freaking impossible.

Soldier shoulder surgery.

Native English speaker here. Aside from catching crap for regional accent differences, I didn't have any noticeable, repeating problems until COVID. I can't, for the life of me, properly pronounce comorbidity. Even when I really concentrate on it, it tends to come out as comorbibity. It really makes me sound stupid as hell.

I'm from the American Southeast. I speak with a tarheel drawl. To listen to me speak, you'd think the word "rural" has four Rs in it. Rrrrl.

You could always claim you learned English from Irish English speakers: they commonly substitute dental frictives with the plosives, so /th/ with /t/ or /d/.

My sister can't say sea minerals without it sounding like semen roll.

When I was younger I read and listened to a lot of English but didn't speak too much. It took me years to get a better hang of "Three" and "Free".

I can not wrap my tounge around ambulance while in a sentence.
So as an Aussie I just call them ambos.

February. I'm happy I don't have to say it often.

Any combination of "th" and "s". Like "months", " clothes", etc.

I used to find words that had the letter R followed by an L difficult. Like girl, world, etc. They're still a bit tongue twisty tbh

English speaker - corollary.

Grew up in the US (the Deep South)… moved to England, have been here for like a bajillion years and unfortunately still sound American 😕

But for me it is crisps. Why do we have to say this word when it is so awkward?!?

"Assthedick"

Now you'll never forget.

As a native english speaker, obsequious.

"Phthalates"

Australian here and with my bigan arse accent I struggle to pronounce the word "regularly"

I break it up to much when I read it into reg-u-lar-ly

If i say it is just roll through the last have and get regurrrly

non native here

girl, world, rivalry

in ascending difficulty, i generally find soft Rs hard to say, tho after a few years, it became easier

"probably" is awkward for me. I used to drop the b's and pronounce it "pro'ly", but now I make the effort to use "likely" instead

Everything is difficult (I'm from Spain).

I am becoming more convinced that I should have been a voice actor......

Legislative.

For me, probably "specific" and "interdisciplinary"

Sphere or Sphincter

Non-native but spent a lot of my life living in English-speaking contexts. I know how to pronounce it, but my tongue seems to like tripping up over "hospital".

Czech has this special Ř sound, which is somewhere between a rolling R and the S in vision (/ˈvɪʒən/). I'm learning Czech as a fifth language, so while I can pronounce it standalone or at the start of a word it takes all my focus to manage mid-word.

I have pretty much no split between four and thaw. Can’t even hear the difference when someone else does it.

+1 for "th". I'm from germany and it's like impossible to pronounce for me.

Paw and Poor sounds like the same word in my dialect, so I have to put in effort to switch to Received Pronunciation when I need to differentiate

I know most Germans struggle with the word "squirrel".

Hierarchy...

I don't know why but "drawer" was a word that was difficult for me to pronounce. In specific the 'aw' sometimes I say it as dr-awe-re other times i pronounce it as d-roar I don't know why it's strange to prononounce.

i used to have difficulty pronouncing the "th" sound as a child too. i would use the same accent my parents did when they used it in words like "three" and i can remember celebrating the moment i realized that i said the number "three" correctly, naturally and without a thought.

ever since then, i've struggled with NOT pronouncing the "th" sound when i speak words that require the hard rolling-r sound like in the spanish word "tres", so go figure. lol

The ones with "ch", the laboratory coworkers laugh when I pronounce "chemistry"