Question

Put these sentences into the past and future

Helen can't turn on the machine. She must flip the switch.

They cannot speak Chinese fluently.

We may go to the disco tonight

They mustn't eat any fat,sugar,or sait.

I must redo this math problem.

Joe may sleep in my bed this week

Can Brenda water ski well?

The twins may go on the trip this weekend.

Vic can't hear the speaker because the crowd is cheering so loudly

The students must read "the lords of the rings"
Dau coroana repede va rooooog

Answer 1

Past: Helen couldn't turn on the machine. She musted flip the switch.
Future: Helen won't be able to turn on the machine. She will have to flip the switch.

They couldn't speak Chinese fluently.
They won't be able to speak Chinese fluently.


We might  go  to the disco tonight.
We will go to the disco tonight.

they mustn't have been eating any fat, sugar or salt.
They  don't have to eat any fat, sugar or salt.

I had to redo this math problem.
I have to redo this math problem.


Joe might have been sliping in my bed this week.

Joe may go sleeping in my bed this week.
Could Brenda have been water ski well?
Will Brenda water ski well?
The twins have been on the trip this weekend. 
The twins will go on the trip this weekend. 
Vic couldn't hear the speaker because the crowd is cheering so loudly
Vic won't be able to hear the speaker because the crowd is cheering so loudly.
The students had to read "the lords of the rings"
The students will have to read "the lords of the rings"

Answer 2

Past:
Helen colud not turn on the machine.She had not to flip the switch.
They coludn't speak Chinese fluently.
We might go to the disco tonight.
They hadn't to eat any fat,sugar or sait.
I had to redo this math problem.
Joe might sleep in my bed this week.
Could Brenda water ski well?
The twins might go on the trip this weekend.
Vic colud not hear the speaker because thecrowd is cheering so loudly.
The students had to read ,,The lords of the rings,,.
La viitor la toate pui cu will in fata (i will must)