| I | ascertain |
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| you | ascertain |
| he/she/it | ascertains |
| we | ascertain |
| you | ascertain |
| they | ascertain |
| I | ascertained |
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| you | ascertained |
| he/she/it | ascertained |
| we | ascertained |
| you | ascertained |
| they | ascertained |
| I | have | ascertained |
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| you | have | ascertained |
| he/she/it | has | ascertained |
| we | have | ascertained |
| you | have | ascertained |
| they | have | ascertained |
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This makes it difficult for the readers to ascertain which version they are reading.
en.wikipedia.org The late gale on this coast, we are much afraid, has been productive of more serious consequences than are yet ascertained.
en.wikipedia.org He was living in 1803, but the date of his death has not been ascertained.
en.wikipedia.org Ultimately, by keeping the echoes in this optimal range, the bats can quickly ascertain certain properties (such as distance and velocity) about the target.
en.wikipedia.org There, he and his colleagues ascertained the spectral type, absolute magnitude, and stellar distance of over 5,000 stars.
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- ASEAN
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