Will it be sure

[Talab1234]

1. Will it be sure that Alice can finish this task?

2. It will be sure that Alice can finish her task.

Is to correct to use the two sentences above?

 

[teechar]

No, they are not natural. Try:
Will Alice definitely be able to finish this task?
Alice will definitely be able to finish her task.

 

[emsr2d2]

Or:

Is it a certainty that Alice will be able to finish this task?
It is a certainty that Alice will be able to finish her task.

If it's only the opinion of the speaker and the listener that matters, you could use:

Are we sure that Alice will be able to finish this task?
We're sure that Alice will be able to finish her task.