I can overgrow you can overgrow he can overgrow we can overgrow you can overgrow they can overgrow
V-ing form
I can be overgrowing you can be overgrowing he can be overgrowing we can be overgrowing you can be overgrowing they can be overgrowing
Perfect
I can have overgrown you can have overgrown he can have overgrown we can have overgrown you can have overgrown they can have overgrown
V-ing perfect
I can have been overgrowing you can have been overgrowing he can have been overgrowing we can have been overgrowing you can have been overgrowing they can have been overgrowing
Negation
Simple form
I can't overgrow you can't overgrow he can't overgrow we can't overgrow you can't overgrow they can't overgrow
V-ing form
I can't be overgrowing you can't be overgrowing he can't be overgrowing we can't be overgrowing you can't be overgrowing they can't be overgrowing
Perfect
I can't have overgrown you can't have overgrown he can't have overgrown we can't have overgrown you can't have overgrown they can't have overgrown
V-ing perfect
I can't have been overgrowing you can't have been overgrowing he can't have been overgrowing we can't have been overgrowing you can't have been overgrowing they can't have been overgrowing
Interrogative form
Simple form
can I overgrow? can you overgrow? can he overgrow? can we overgrow? can you overgrow? can they overgrow?
V-ing form
can I be overgrowing? can you be overgrowing? can he be overgrowing? can we be overgrowing? can you be overgrowing? can they be overgrowing?
Perfect
can I have overgrown? can you have overgrown? can he have overgrown? can we have overgrown? can you have overgrown? can they have overgrown?
V-ing perfect
can I have been overgrowing? can you have been overgrowing? can he have been overgrowing? can we have been overgrowing? can you have been overgrowing? can they have been overgrowing?
Interro-negative form
Simple form
can't I overgrow? can't you overgrow? can't he overgrow? can't we overgrow? can't you overgrow? can't they overgrow?
V-ing form
can't I be overgrowing? can't you be overgrowing? can't he be overgrowing? can't we be overgrowing? can't you be overgrowing? can't they be overgrowing?
Perfect
can't I have overgrown? can't you have overgrown? can't he have overgrown? can't we have overgrown? can't you have overgrown? can't they have overgrown?
V-ing perfect
can't I have been overgrowing? can't you have been overgrowing? can't he have been overgrowing? can't we have been overgrowing? can't you have been overgrowing? can't they have been overgrowing?