I wrote about all that John did. (I wrote about all that John did.)
I wrote about all that John did. (I wrote 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. (I am writing about all that John did.)
2.5a - I wrote about all that John did. (I wrote about all that John did.)
I wrote about all that John did. (I wrote about all that John did.)
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.)