Regular verb: mark - marked - marked
Simple form | V-ing form |
I can mark you can mark she can mark we can mark you can mark they can mark | I can be marking you can be marking she can be marking we can be marking you can be marking they can be marking |
Perfect | V-ing perfect |
I can have marked you can have marked she can have marked we can have marked you can have marked they can have marked | I can have been marking you can have been marking she can have been marking we can have been marking you can have been marking they can have been marking |
Simple form | V-ing form |
I can't mark you can't mark she can't mark we can't mark you can't mark they can't mark | I can't be marking you can't be marking she can't be marking we can't be marking you can't be marking they can't be marking |
Perfect | V-ing perfect |
I can't have marked you can't have marked she can't have marked we can't have marked you can't have marked they can't have marked | I can't have been marking you can't have been marking she can't have been marking we can't have been marking you can't have been marking they can't have been marking |
Simple form | V-ing form |
can I mark? can you mark? can she mark? can we mark? can you mark? can they mark? | can I be marking? can you be marking? can she be marking? can we be marking? can you be marking? can they be marking? |
Perfect | V-ing perfect |
can I have marked? can you have marked? can she have marked? can we have marked? can you have marked? can they have marked? | can I have been marking? can you have been marking? can she have been marking? can we have been marking? can you have been marking? can they have been marking? |
Simple form | V-ing form |
can't I mark? can't you mark? can't she mark? can't we mark? can't you mark? can't they mark? | can't I be marking? can't you be marking? can't she be marking? can't we be marking? can't you be marking? can't they be marking? |
Perfect | V-ing perfect |
can't I have marked? can't you have marked? can't she have marked? can't we have marked? can't you have marked? can't they have marked? | can't I have been marking? can't you have been marking? can't she have been marking? can't we have been marking? can't you have been marking? can't they have been marking? |