"Had become" is the past perfect tense of become.
The conjugation "had" isthe past tense of to haveused in the past perfect tense (had done)used in the past perfect progressive tense (had been doing).He had a dog.The dog had eaten his homework.He had been planning to get a cat.
Choose is not past tense, it's present tense. The past tense is chose.
Is can be used in the past tense if it's in its past tense form, which is was.
The past tense is undid.
The past tense is downed.
No, they became is the simple past tense of become. The past perfect tense of become is had become.
Have become is present perfect. Present perfect is have/has + past participle. Become is the past participle of the verb become.You have become a real problem for me
Have/has become.
dont trip
Existed is the past tense. The past perfect tense is had existed.
The past tense is bled, and the past perfect tense is had bled.
The past tense of sit is sat; the past perfect tense is had sat.
The past perfect tense of hope is had hoped.
The past perfect tense is had submitted.
The past perfect tense is had chosen.
The past perfect tense is "had confronted".
The past perfect tense is had set.