I can journal you can journal he can journal we can journal you can journal they can journal
V-ing form
I can be journaling you can be journaling he can be journaling we can be journaling you can be journaling they can be journaling
Perfect
I can have journaled you can have journaled he can have journaled we can have journaled you can have journaled they can have journaled
V-ing perfect
I can have been journaling you can have been journaling he can have been journaling we can have been journaling you can have been journaling they can have been journaling
Negation
Simple form
I can't journal you can't journal he can't journal we can't journal you can't journal they can't journal
V-ing form
I can't be journaling you can't be journaling he can't be journaling we can't be journaling you can't be journaling they can't be journaling
Perfect
I can't have journaled you can't have journaled he can't have journaled we can't have journaled you can't have journaled they can't have journaled
V-ing perfect
I can't have been journaling you can't have been journaling he can't have been journaling we can't have been journaling you can't have been journaling they can't have been journaling
Interrogative form
Simple form
can I journal? can you journal? can he journal? can we journal? can you journal? can they journal?
V-ing form
can I be journaling? can you be journaling? can he be journaling? can we be journaling? can you be journaling? can they be journaling?
Perfect
can I have journaled? can you have journaled? can he have journaled? can we have journaled? can you have journaled? can they have journaled?
V-ing perfect
can I have been journaling? can you have been journaling? can he have been journaling? can we have been journaling? can you have been journaling? can they have been journaling?
Interro-negative form
Simple form
can't I journal? can't you journal? can't he journal? can't we journal? can't you journal? can't they journal?
V-ing form
can't I be journaling? can't you be journaling? can't he be journaling? can't we be journaling? can't you be journaling? can't they be journaling?
Perfect
can't I have journaled? can't you have journaled? can't he have journaled? can't we have journaled? can't you have journaled? can't they have journaled?
V-ing perfect
can't I have been journaling? can't you have been journaling? can't he have been journaling? can't we have been journaling? can't you have been journaling? can't they have been journaling?