no
Introduced is a verb. It's the past tense of introduce.
The past tense of the verb 'am' is 'was' or 'were.' The verb 'am' is derived from the verb 'to be.'
The past tense verb for "do" is "did."
By is not a verb and does not have a past tense. Buy is a verb, and the past tense is bought.
The verb is still "to be", regardless of the tense. It is an irregular verb, and the past tense forms are was for I and he/she/it, and were for we, you, and they.
The word 'introduced' is not a noun. The word 'introduced' is the past participle, past tense of the verb to introduce. The past participle of the verb also functions as an adjective.The abstract noun forms of the verb to introduce are introduction and the gerund, introducing.
Shall is an auxiliary verb, that is it is used before and in conjunction with another verb, as in, ...shall go... or ...shall be. The past tense of shall is shouldand is typically used with another auxiliary verb such as have, as in, ...should have gone... or ...should have been.
"Shook" is the past tense of the verb, "to shake".
The past tense of the verb to promise is promised.
The past tense of the verb take is took
reside is the verb. Resided is the past tense.
The abbreviation for the past tense verb is "past."