First Conditional

I'll talk to the IT manager.

I'm going to talk to the IT manager.

if Joan has already sent it.

if Joan is going to send it.

he'll be able to finish the report.

he won't be able to finish the report.

a lot of customers have been confused.

a lot of customers are going to be confused.

if you haven't done it by lunchtime.

if you don't do it by lunchtime.

we're not going to change the time again.

we're not changing the time again.