GLBasic Programming/BASIC/IF...THEN...ELSEIF...ELSE

This part is about the commands IF THEN ELSEIF ELSE.

LET number = -3 //Or your own
IF number<0 THEN
  PRINT "Number is negative"
ELSEIF number>0 THEN
  PRINT "Number is positive"
ELSE
  PRINT "Number is zero"
END IF

I hope you got it now.