2.5b I am writing about all that John did. (I am writing about all that John did.)
I am writing about all that John did. (I am writing about all that John did.)2.5c I will write about all that John did. (I will write about all that John did.)
I will write about all that John did. (I will write about all that John did.)
2.5d I wrote about all that John is doing. (I wrote about all that John is doing.)
I wrote about all that John is doing. (I wrote about all that John is doing.)
2.5e I am writing about all that John is doing. (I am writing about all that John is doing.)
I am writing about all that John is doing. (I am writing about all that John is doing.)
2.5f I will write about all that John is doing. (I will write about all that John is doing.)
I will write about all that John is doing. (I will write about all that John is doing.)
2.5g I wrote about all that John will do. (I wrote about all that John will do.)
I wrote about all that John will do. (I wrote about all that John will do.)
2.5h I am writing about all that John will do. (I am writing about all that John will do.)
I am writing about all that John will do. (I am writing about all that John will do.)
2.5i I will write about all that John will do. (I will write about all that John will do.)
I will write about all that John will do. (I will write about all that John will do.)