Rhotic & non-rhotic accents: A rhotic accent is one in which the R is pronounced in all contexts (i.e. beginning, middle and end of a word). General American English is rhotic. Non-rhotic accent, by contrast, is one in which the R is only pronounced when it precedes a vowel. Standard Southern British English is non-rhotic.
Hiatus: It's the ...
Some people pronounce Don't be as dombe because the t is sometimes deleted and the n is assimilated to an m in anticipation of the following b.
In Don't be, the /t/ is flanked by two consonants (/n/ and /b/) and in normal or casual speech, some people tend to drop some consonants (such as /t/ and /d/) when they come between two other ...