Move between sentences with `M-a' and `M-e'.

Mark a sentence forward with ‘M-x mark-end-of-sentence’.

Kill a sentence forward with ‘M-k’.

Kill a sentence backward with ‘C-x DEL’

See the section on “Sentences” in the EmacsManual. (info "(emacs) Sentences")

Note: Emacs’s sentence detection, by default, expects sentences to end with terminal punctuation followed by two spaces or a new line. The former can be changed by setting ‘sentence-end-double-space’ to ‘nil’. See the section of manual mentioned above for more.

See also:

CategoryEditing CategoryWriting