I can seep you can seep she can seep we can seep you can seep they can seep
V-ing form
I can be seeping you can be seeping she can be seeping we can be seeping you can be seeping they can be seeping
Perfect
I can have seeped you can have seeped she can have seeped we can have seeped you can have seeped they can have seeped
V-ing perfect
I can have been seeping you can have been seeping she can have been seeping we can have been seeping you can have been seeping they can have been seeping
Negation
Simple form
I can't seep you can't seep she can't seep we can't seep you can't seep they can't seep
V-ing form
I can't be seeping you can't be seeping she can't be seeping we can't be seeping you can't be seeping they can't be seeping
Perfect
I can't have seeped you can't have seeped she can't have seeped we can't have seeped you can't have seeped they can't have seeped
V-ing perfect
I can't have been seeping you can't have been seeping she can't have been seeping we can't have been seeping you can't have been seeping they can't have been seeping
Interrogative form
Simple form
can I seep? can you seep? can she seep? can we seep? can you seep? can they seep?
V-ing form
can I be seeping? can you be seeping? can she be seeping? can we be seeping? can you be seeping? can they be seeping?
Perfect
can I have seeped? can you have seeped? can she have seeped? can we have seeped? can you have seeped? can they have seeped?
V-ing perfect
can I have been seeping? can you have been seeping? can she have been seeping? can we have been seeping? can you have been seeping? can they have been seeping?
Interro-negative form
Simple form
can't I seep? can't you seep? can't she seep? can't we seep? can't you seep? can't they seep?
V-ing form
can't I be seeping? can't you be seeping? can't she be seeping? can't we be seeping? can't you be seeping? can't they be seeping?
Perfect
can't I have seeped? can't you have seeped? can't she have seeped? can't we have seeped? can't you have seeped? can't they have seeped?
V-ing perfect
can't I have been seeping? can't you have been seeping? can't she have been seeping? can't we have been seeping? can't you have been seeping? can't they have been seeping?