Voiced th Versus d

Some non-native speakers incorrectly pronounce the voiced th as a d. The following words end up sounding the same.

Again, to correct this problem change the position of your tongue by moving it forward to touch the teeth. Also, make sure that there is a flow of air between your tongue and your teeth.

Warning: Common Mistake

Make sure that your tongue vibrates under your upper teeth. Do not bite your tongue or press it on your upper teeth too strongly—this will block the flow of air that is required to produce the th sound correctly.