It is not illegal to fly a tattered flag, but it is considered disrespectful. It is recommended to replace a tattered flag with a new one to show proper respect for the flag and its symbolism.

A tattered flag, An old tattered man

No, burning a national flag is not a common practice in the Philippines. The proper way to dispose of a tattered flag in the Philippines is through a ceremony called "flag retirement," where it is respectfully folded and buried or cremated.

There are may uses of the word tattered, tho the most common one would be in reference to the condition of something.

i.e.

"That tarp is tattered beyond use."

"The wind has tattered that flag."

Yes, "tattered" can function as a participle in a sentence. It is the past participle form of the verb "tatter" and can be used to describe something that is torn or ragged. For example, "the tattered flag fluttered in the wind."