I wrote about all that John did. (I wrote about all that he did.)
I wrote about all that he did. (I wrote about all that he did.)
I am writing about all that John did. (I am writing about all that he did.)
I am writing about all that he did. (I am writing about all that he did.)
I will write about all that John did. (I will write about all that he did.)
I will write about all that he did. (I will write about all that he did.)
2.7a - I wrote about all that John did. (I wrote about all that he did.)
I wrote about all that he did. (I wrote about all that he did.)
2.7b - I am writing about all that John did. (I am writing about all that he did.)
I am writing about all that he did. (I am writing about all that he did.)
2.7c - I will write about all that John did. (I will write about all that he did.)
I will write about all that he did. (I will write about all that he did.)
2.7d - I wrote about all that John is doing. (I wrote about all that he is doing.)
I wrote about all that he is doing. (I wrote about all that he is doing.)
2.7e - I am writing about all that John is doing. (I am writing about all that he is doing.)
I am writing about all that he is doing. (I am writing about all that he is doing.)
2.7f - I will write about all that John is doing. (I will write about all that he is doing.)
I will write about all that he is doing. (I will write about all that he is doing.)
2.7g - I wrote about all that John will do. (I wrote about all that he will do.)
I wrote about all that he will do. (I wrote about all that he will do.)
2.7h - I am writing about all that John will do. (I am writing about all that he will do.)
I am writing about all that he will do. (I am writing about all that he will do.)
2.7i - I will write about all that John will do. (I will write about all that he will do.)
I will write about all that he will do. (I will write about all that he will do.)