Had traveled = had + past participle
I had traveled to China many times before.
"You had traveled" is the past perfect tense.
The past perfect tense of "form" is "had formed".
The past perfect tense follows this structure:SUBJECT + HAD + PAST PARTICIPLE
the past perfect tense of memorize is in active form: had+memorized in passive form: had+been+memorized
"Had written" is the past perfect tense of "write".
the form of the past tense are past progressive,past perfect progressive,past perfect simple.
The past perfect form is 'had gone'.
The past perfect tense is 'had salvaged'.
The past perfect tense is 'had sewn'.
The past perfect tense is 'had danced'
The past perfect tense is formed like so:Subject + Had + Past Participle.So, for example, the past perfect tense of "blow" would be:I had blown.
"Been" is the past participle form of the verb "be" and is used in present perfect and past perfect tenses.