Quite right ttward. You stand corrected by your own hand and for that you are commended. The verb form of the noun ' half ' is ' halve ' as you rightly say.
The Spelling and Grammar Police are watching make no mistake.
One common error which causes me paroxysms of pain on a daily basis is the use of ' there ' when what is required is ' their '.
Arrests and round - ups are imminent ( no, not ' eminent ' ) and that - if you're ( not your ) listening - includes you @profitplease.
