int | float | char | const | as | do |
double | decimal | break | continue | enum | if |
else | while | decimal | false | finally | event |
foreach | for | extern | abstract | bool | byte |
delegate | case | checked | interface | internal | readonly |
null | object | stackalloc | private | protected | true |
sealed | short | public | switch | this | sizeof |
ulong | unchecked | throw | volatile | checked | class |
is | out | implicit | lock | operator |