Yes, 'thought' is the irregular past tense of 'think'.
c
The verb in the sentence is "thought."
The word seen is a verb. It is the past tense of the irregular verb "see".
"Seen" is the irregular past participle of "to see".
"Think" is an irregular verb. In the past tense, it changes to "thought" instead of following the regular -ed pattern.
It is the past participle of see. See is an irregular verb.
Yes there is. Threw is the past form of the irregular verb throw.
"has always thought" is the verb phrase in this sentence.
In the sentence, "he has always thought about his future" the verb phrase is "has always thought".
In the sentence "He has always thought about his future," the verb phrase is "has always thought." While "thought" is the verb, a verb phrase includes words that may affect the tense of the verb.
There is no irregular perfect tense.Present perfect tense is formed with have/has + past participle.See is an irregular verb. This is a present perfect sentence with see (past participle seen).I have seen the movie ten times.Past perfect is formed with had +past participle.Draw is an irregular verb. This is a past perfect sentence with draw (past participle drawn).I had drawn the picture before work finished.
yes