Modes

[count] - An optional number that may precede the command to multiply or iterate the command.

Mode	Description
Insert mode	[count]i
Normal mode	<Esc> or CTRL-[ or CTRL-c
Visual mode	v
Visual line mode	[count]V
Visual block mode	CTRL-v
Replace mode	R
Operator‑pending mode	Like Normal mode, but after an operator command has start, and Vim is waiting for a {motion} to specify the text that the operator will work on.
Command-line mode Cmdline mode	:, /, ?, !
Multiple-cursor mode	CTRL-n or gh