With reference to Johnson F's reply on
http://www.usingenglish.com/forum/ask-teacher/136704-past-future-tense-must.html "Must" does not have a future form.
A sentence like the one below that can be inferred as:
I must (present obligation) finish my homework tomorrow (in future time).Now the question is what happens if we place the future time indicator 'tomorrow' at the beginning:
Tomorrow I must finish my homework.
Is the sentence correct? The emphasis is on a future time 'tomorrow' yet 'must' refers to a present obligation.
Should it be this instead since there is no future form of 'must':
Tomorrow I will have to finish my homework.I have seen and heard lot of people using 'must' in the future conditionals:
When it happens (in the future), we must...Shouldn't it be:
When it happens (in the future), we will have to...This also applies to 'have to' 'need to' and other modals like 'can':
I can (present ability) do my chores tomorrow (future time) & Tomorrow I can/will be able to do my chores
I have to (present obligation) do this tomorrow &
Tomorrow I have to/will have to do thisCould someone please kindly enlighten me on these? Thanks.