I can watermark you can watermark he can watermark we can watermark you can watermark they can watermark
V-ing form
I can be watermarking you can be watermarking he can be watermarking we can be watermarking you can be watermarking they can be watermarking
Perfect
I can have watermarked you can have watermarked he can have watermarked we can have watermarked you can have watermarked they can have watermarked
V-ing perfect
I can have been watermarking you can have been watermarking he can have been watermarking we can have been watermarking you can have been watermarking they can have been watermarking
Negation
Simple form
I can't watermark you can't watermark he can't watermark we can't watermark you can't watermark they can't watermark
V-ing form
I can't be watermarking you can't be watermarking he can't be watermarking we can't be watermarking you can't be watermarking they can't be watermarking
Perfect
I can't have watermarked you can't have watermarked he can't have watermarked we can't have watermarked you can't have watermarked they can't have watermarked
V-ing perfect
I can't have been watermarking you can't have been watermarking he can't have been watermarking we can't have been watermarking you can't have been watermarking they can't have been watermarking
Interrogative form
Simple form
can I watermark? can you watermark? can he watermark? can we watermark? can you watermark? can they watermark?
V-ing form
can I be watermarking? can you be watermarking? can he be watermarking? can we be watermarking? can you be watermarking? can they be watermarking?
Perfect
can I have watermarked? can you have watermarked? can he have watermarked? can we have watermarked? can you have watermarked? can they have watermarked?
V-ing perfect
can I have been watermarking? can you have been watermarking? can he have been watermarking? can we have been watermarking? can you have been watermarking? can they have been watermarking?
Interro-negative form
Simple form
can't I watermark? can't you watermark? can't he watermark? can't we watermark? can't you watermark? can't they watermark?
V-ing form
can't I be watermarking? can't you be watermarking? can't he be watermarking? can't we be watermarking? can't you be watermarking? can't they be watermarking?
Perfect
can't I have watermarked? can't you have watermarked? can't he have watermarked? can't we have watermarked? can't you have watermarked? can't they have watermarked?
V-ing perfect
can't I have been watermarking? can't you have been watermarking? can't he have been watermarking? can't we have been watermarking? can't you have been watermarking? can't they have been watermarking?