The past tense of talk is "talked". It is also the participle.
That is the correct spelling of the past tense form "reminisced" (remembered, reflected on the past).
The word "happened" is the past tense form of the verb "to happen".
Yes: shielded. This is the past tense form of "shield".
The past tense or adjective form does not double the E : received.
The verb form is spelled commemorate (honor or recognize a past action).
Talked
The past tense form of "talk" is "talked."
Present tense:I/you/we/they talk.He/she/it talks.Past tense:Talked.
The past tense is 'told'.
spelt per American Heritage Dictionary "alternate past tense and past participle of spell".
The past tense form of "party" is "partied."
"Talked" is already the past participle, or past indicative, of "talk". "Talked" as such does not have a past participle, because it is not an infinitive form of a verb.
It is spelled:weighted. <><><><><> How about weighed
The past tense is the usual -ed form, volleyed.
Sailed is already the past tense form of 'sail'.
Successful is an adjective and so doesn't have a past form. The past tense of succeed is succeeded.
"Must" doesn't have a past form. You can use "had to" to talk about obligation in the past.