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What tense is "has became" in the sentence below

"Drug policy reform has also became a topic of international debate"?

I know the verb "become" and came across "has become" but haven't seen "has became" in a sentence before.

Violette
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Robert Bos
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    It's wrong. It should be the present perfect tense: auxiliary verb "has" + past participle "become". Where did you find that sentence? – BillJ Jan 13 '17 at 08:57
  • It might be duplicate http://ell.stackexchange.com/questions/93756/became-vs-has-become – CatfishFTW Jan 13 '17 at 09:11

4 Answers4

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This is a present perfect tense but in wrong construction. The present perfect construction is Has/have+past particple

I made this mistake once, when I was twelve. It's because typical verbs have same past and past participle forms. But, become is an irregular verb, became is past tense and become is past participle.

We have a good source about perfect tense. You might want to read it here

Community
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Mohd Zulkanien Sarbini
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become -> became -> become

"to become" is irregular and the author used it wrong. He had to use "become" because it is the third form (past participle) which is needed.

Present Perfect (active): have/has + past participle

Grevak
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The author should have written: It became or has become, if no one else talks about it then they could write had become. If discussions were still underway then maybe used as a participle in itself, "Having become a topic discussion.."

Skwishe
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Wrong, because it's related to the present, it's not at some remote past time. What they really want to say is: 

Drug policy reform has also recently /lately become a topic of international debate

CatfishFTW
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