The past participle of "telecast" is "telecast." It is an irregular verb, meaning it does not follow the standard pattern of adding "-ed" to form the past participle. For example, you can say, "The show was telecast yesterday."
Will be telecasted is the natural form, although will be telecast is common. Telecast comes from broadcast, which comes from cast, for which the past participle is casted. However, unobservant speakers frequently mistake the -t in cast for an allomorph of the past marker -ed.
The past tense of telecast is telecast.
The past participle of do is done. The past participle of have is had.
The past participle of am is been. Not does not have a past participle
What is the past participle of do
The past participle of have is had....:) I have had...
The past participle is been.
The past participle is willed.
The past participle is had.
The past participle is thought.
Being is the present participle. The past participle is been.
To isn't a verb and so doesn't have a past participle. The past participle of be is been.