Composed is the past participle of compose.
The passé composé form of "dire" is "a dit."
Composed is the past participle of compose.
"Compose" is a regular verb; therefore its past participle is "composed".
Composed is the preterite and the past participle of the verb compose; and it is an adjective.
The past participle of "form" is "formed."
The past participle form of wear is worn.
The past participle form of "give" is "given".
The past participle is done.
You need to know whether the helping very is "etre" or "avoir." You need to know the past participle. In some cases, you need to make the past participle agree with the noun.
The past participle form of "grew" is "grown."
Were is a past tense form of be. The past participle of be is been.