I can tile you can tile she can tile we can tile you can tile they can tile
V-ing form
I can be tiling you can be tiling she can be tiling we can be tiling you can be tiling they can be tiling
Perfect
I can have tiled you can have tiled she can have tiled we can have tiled you can have tiled they can have tiled
V-ing perfect
I can have been tiling you can have been tiling she can have been tiling we can have been tiling you can have been tiling they can have been tiling
Negation
Simple form
I can't tile you can't tile she can't tile we can't tile you can't tile they can't tile
V-ing form
I can't be tiling you can't be tiling she can't be tiling we can't be tiling you can't be tiling they can't be tiling
Perfect
I can't have tiled you can't have tiled she can't have tiled we can't have tiled you can't have tiled they can't have tiled
V-ing perfect
I can't have been tiling you can't have been tiling she can't have been tiling we can't have been tiling you can't have been tiling they can't have been tiling
Interrogative form
Simple form
can I tile? can you tile? can she tile? can we tile? can you tile? can they tile?
V-ing form
can I be tiling? can you be tiling? can she be tiling? can we be tiling? can you be tiling? can they be tiling?
Perfect
can I have tiled? can you have tiled? can she have tiled? can we have tiled? can you have tiled? can they have tiled?
V-ing perfect
can I have been tiling? can you have been tiling? can she have been tiling? can we have been tiling? can you have been tiling? can they have been tiling?
Interro-negative form
Simple form
can't I tile? can't you tile? can't she tile? can't we tile? can't you tile? can't they tile?
V-ing form
can't I be tiling? can't you be tiling? can't she be tiling? can't we be tiling? can't you be tiling? can't they be tiling?
Perfect
can't I have tiled? can't you have tiled? can't she have tiled? can't we have tiled? can't you have tiled? can't they have tiled?
V-ing perfect
can't I have been tiling? can't you have been tiling? can't she have been tiling? can't we have been tiling? can't you have been tiling? can't they have been tiling?