Will, Be going to, present continuous

am going to have

 will have

am having

are going to lie

  will lie

 will be lying

 will finish

are finishing

will have finished

 am doing

have done

 will do

 will get

 am going to

 am getting

 you are you going to retire before you're sixty

you will retire before you're sixty

  you are retiring before you're sixty

you will fall over

  you're going to fall over

you're falling over

 'OK. I'm getting it.'

 'OK. I'll get it.'

'OK. I'm going to get it.'

Thanks. I'll give you a call as soon as I get there.'

Thanks. Im giving you a call as soon as I get there.'

'Thanks. I'm going to give you a call as soon as I get there.'

We'll fix it then.

We'll be fixing it then.

 We'll have fixed it by then.

   The meeting will finish then.

  The meeting will have finished by then.

  The meeting will be finishing then.

I'll still be doing the research.

  I will have done the research.

 I will do the research.