never
No polar bears are not exstincted yet! they are very close! Maybe in the next few years. But they are not fully.
no, and learn to spell =)
No, but the population has declined, to where they are listed as vulnerable now.
No, although there has been a noticeable decline in numbers, they are nowhere near extinct.
Because you are a right nuter and cut down the BAMBOO!
An extinct volcano is one that is not expected to erupt again because it has been dormant for thousands of years. In contrast, an active volcano is one that is currently erupting or has erupted recently.
will become, shall become, (am/are/is) going to become,
The past participle of become is also have or has become. She has become a better person.
The past participle of "become" is also "become" as in "I have become a better person."
The future perfect tense of become is will have become.
Has become. The 3rd person singular (he, she, it) uses 'has become.' The other persons of the conjugation use 'have become.' He has become class president. She has become homecoming princess. It has become time to go. 'Become' is the correct participial form of the verb; is become, has become, had become, might have become, will become, etc. 'Became' is the simple past tense conjugation of the verb, and is never used as the participle.
(I, We, You, They) become. (He, She, It) becomes.