Halving principle is not employed under the following situations e.g.
i. Downward form of ‘h’ is not halved, when standing alone. It is the upward form of ‘h’ is halved e.g.
Hat 
Heat 
ii. Stroke is not halved when followed by a ‘triphone’ e.g.
Fiat 
Diet 
iii. Halving principle is not used when there is a joining of two straight strokes, forming no angle., e.g.
Looked 
cooked 
iv. In the words ending with ‘t’ and ‘d’ , and followed by a vowel e.g.
Body 
Ready 
