I can quilt you can quilt he can quilt we can quilt you can quilt they can quilt
V-ing form
I can be quilting you can be quilting he can be quilting we can be quilting you can be quilting they can be quilting
Perfect
I can have quilted you can have quilted he can have quilted we can have quilted you can have quilted they can have quilted
V-ing perfect
I can have been quilting you can have been quilting he can have been quilting we can have been quilting you can have been quilting they can have been quilting
Negation
Simple form
I can't quilt you can't quilt he can't quilt we can't quilt you can't quilt they can't quilt
V-ing form
I can't be quilting you can't be quilting he can't be quilting we can't be quilting you can't be quilting they can't be quilting
Perfect
I can't have quilted you can't have quilted he can't have quilted we can't have quilted you can't have quilted they can't have quilted
V-ing perfect
I can't have been quilting you can't have been quilting he can't have been quilting we can't have been quilting you can't have been quilting they can't have been quilting
Interrogative form
Simple form
can I quilt? can you quilt? can he quilt? can we quilt? can you quilt? can they quilt?
V-ing form
can I be quilting? can you be quilting? can he be quilting? can we be quilting? can you be quilting? can they be quilting?
Perfect
can I have quilted? can you have quilted? can he have quilted? can we have quilted? can you have quilted? can they have quilted?
V-ing perfect
can I have been quilting? can you have been quilting? can he have been quilting? can we have been quilting? can you have been quilting? can they have been quilting?
Interro-negative form
Simple form
can't I quilt? can't you quilt? can't he quilt? can't we quilt? can't you quilt? can't they quilt?
V-ing form
can't I be quilting? can't you be quilting? can't he be quilting? can't we be quilting? can't you be quilting? can't they be quilting?
Perfect
can't I have quilted? can't you have quilted? can't he have quilted? can't we have quilted? can't you have quilted? can't they have quilted?
V-ing perfect
can't I have been quilting? can't you have been quilting? can't he have been quilting? can't we have been quilting? can't you have been quilting? can't they have been quilting?