The "th" sound:

Put the tip of your tongue between your top and bottom front teeth. Blow out air while using your voice.

The "th" sounds in English can be voiced and unvoiced (with vibration or without vibration). In this pair we are practicing the voiced "th" sound.

The "d" sound:

Touch the tip of your tongue to the back of your upper teeth then drop your tongue and use your voice.

The "th" sound

The "d" sound