English Grammar


no future in time clauses

I'v got a big problem.
I learnt "no future in time clauses"   
(when, by the time, as soon as, while, etc we do not use will or going to)


In my correction I found:

We cannot use the simple present tense when the construction requires a future tense form. When the subordinate clause of a sentence is introduced by 'when,' the verb of the subordinate clause must be put in the future tense.
Correct will return: 'Everyone is wondering...' uses the present progressive tense, and indicates that people are 'currently' or 'now' wondering when Luna will return (in the future). When the principal clause of a sentence uses a present tense verb form ('everyone is wondering'), and the subordinate clause is introduced by 'when,' the verb of the subordinate clause must be put in the future tense. 


I need help!
Thank you so much.
pixy

1 comments

  • As for me, pixy, it goes this way - about a FUTURE EVENT.


    If the principal clause uses the simple present, the subordinate introduced by 'when' uses a future tense.
    I don't know when Pixy will read these lines.
    She pretends to know when she will pass on.
    I want to know when you will leave.
    Please, tell me when you will be back.
    He guesses when it will start raining.


    With a principal clause in a future tense, the conditional one introduced by 'when' is always in the present tense.
    I'll tell you when we meet.
    We will start when the sun rises.
    We won't ever guess when the Jihadist makes the bomb blow up.
    I'll do the dishes when the meal is over.
    The train will start when the time's up.

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