Affirmative:

Subject + Aux.Verb + V-ing + Compl.

• We will be playing tennis tomorrow afternoon
• Luis will be doing his homework next weekend 

Negative:

Subject + Aux.Verb + Not + V-ing + Compl.

• We will not be plating tennis tomorrow afternoon
• Luis won't be doing his homework...

Interrogative:

Yes/No Question

Will + Subject + Be + V-ing + Compl.?

• Will be playing tennis tomorrow?

      Yes: -We will be 

       No: - We won't be 

Inf. Question:

W.H. + Aux.Verb + Subject + Be + V-ing + Compl.?

• What will we be playing?
• When will luis be doing his homework?