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  1. #1
    vil is offline VIP Member
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    Default Sequence of Tenses

    Dear teachers,

    Would you be kind enough to explain to me the non-observance of the rules concerning the sequence of tenses in the following sentences?

    1.Kelner discovered that visible light has the remarkable ability of restoring viability.
    2.It was found that ultraviolet-activated phages cause marked alterations of cell structure.
    3.They believed that, on treatment of beechwood lignocellulose with ozone the latter reacts with the cycllohexanone group.
    4.He established the formula of the alcohol and suggested that saponification of the ester proceeds as follows.
    5.Doisy initially stated that these and related degradation products possess several times the estrogenic potency of pure estrogen.
    6.The author claimed that formula II is in good agreement with the following experimental results.

    Thank you for your efforts.

    Regards,

    V.

  2. #2
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    mamen is offline Member
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    Post Re: Sequence of Tenses

    Quote Originally Posted by vil View Post
    Dear teachers,

    Would you be kind enough to explain to me the non-observance of the rules concerning the sequence of tenses in the following sentences?

    1.Kelner discovered that visible light has the remarkable ability of restoring viability.
    2.It was found that ultraviolet-activated phages cause marked alterations of cell structure.
    3.They believed that, on treatment of beechwood lignocellulose with ozone the latter reacts with the cycllohexanone group.
    4.He established the formula of the alcohol and suggested that saponification of the ester proceeds as follows.
    5.Doisy initially stated that these and related degradation products possess several times the estrogenic potency of pure estrogen.
    6.The author claimed that formula II is in good agreement with the following experimental results.

    Thank you for your efforts.

    Regards,

    V.
    according to my teachers, things that are still considered to be true are likely to be reported by a present tense.

  3. #3
    Tdol is offline Editor, UsingEnglish.com
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    Default Re: Sequence of Tenses

    I agree; if it holds true...

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