The past participle of fit is 'fitted' or 'fit'.
Most Americans generally prefer to use 'fit' instead of 'fitted',but in British English people prefer to use 'fitted'.
The simple past tenses of the verb to fit are fitted and fit.The past passive forms are had been fitted and had been fit.
The past participle of "do" is "done." The past participle of "have" is "had."
The past participle of "am not" is "have not been."
The past tense of "have" is "had," and the past participle is also "had."
The past participle of the word "have" is "had."
The past participle of "will" is "willed."
The past participle of "am, are, is" is "been."
The past participle is thought.
The past participle of "to" is "been." The past participle of "be" is also "been."
Being is the present participle. The past participle is been.
The past tense and the past participle is "answered".
Present participle: hiding Past: hid Past participle: hidden