The past tense of become a stain of the escutcheon of is became a stain of the escutcheon of.

The third-person singular simple present indicative form of become a stain of the escutcheon of is becomes a stain of the escutcheon of.

The present participle of become a stain of the escutcheon of is becoming a stain of the escutcheon of.

The past participle of become a stain of the escutcheon of is become a stain of the escutcheon of.