I can tile you can tile he can tile we can tile you can tile they can tile
V-ing form
I can be tiling you can be tiling he can be tiling we can be tiling you can be tiling they can be tiling
Perfect
I can have tiled you can have tiled he 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 he 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 he 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 he 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 he 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 he 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 he tile? can we tile? can you tile? can they tile?
V-ing form
can I be tiling? can you be tiling? can he be tiling? can we be tiling? can you be tiling? can they be tiling?
Perfect
can I have tiled? can you have tiled? can he 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 he 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 he 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 he 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 he 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 he have been tiling? can't we have been tiling? can't you have been tiling? can't they have been tiling?