I know these three do not sound like each other at all for natives; I can distinguish these three words when I hear native speakers speaking. BUT… when it come to pronunciation, I have difficulty pronouncing “court”.(I also have trouble in relatively short words which include “R” in the middle, such as "Lord"and “sorry” ).
My question here is, however, not about how to improve my pronunciation.( because I know how! “Practice”! ) What I’d like to ask is how importantly correct pronunciation plays a role in order to make ourselves understood in English conversations.
The reason I ask this is that in Japanese almost all you say could be understood even if you mispronounced some words; ohashi or ohasi,and etc.( this might be mainly because our language is not so rich in vowels as English is.)
I am always curious how largely pronunciation counts for English conversations, compared with syntax or grammar.