break

Terminate execution of for loop or while loop

case

Case switch

continue

Pass control to next iteration of for or while loop

else

Conditionally execute statements

elseif

Conditionally execute statements

end

Terminate conditional statements, or indicate last index

error

Display error messages

for

Repeat statements specific number of times

if

Conditionally execute statements

otherwise

Default part of switch statement

return

Return to invoking function

switch

Switch among several cases based on expression

try

Begin try block

while

Repeat statements indefinite number of times