Regular verb: use - used - used
Simple form | V-ing form |
I can use you can use he can use we can use you can use they can use | I can be using you can be using he can be using we can be using you can be using they can be using |
Perfect | V-ing perfect |
I can have used you can have used he can have used we can have used you can have used they can have used | I can have been using you can have been using he can have been using we can have been using you can have been using they can have been using |
Simple form | V-ing form |
I can't use you can't use he can't use we can't use you can't use they can't use | I can't be using you can't be using he can't be using we can't be using you can't be using they can't be using |
Perfect | V-ing perfect |
I can't have used you can't have used he can't have used we can't have used you can't have used they can't have used | I can't have been using you can't have been using he can't have been using we can't have been using you can't have been using they can't have been using |
Simple form | V-ing form |
can I use? can you use? can he use? can we use? can you use? can they use? | can I be using? can you be using? can he be using? can we be using? can you be using? can they be using? |
Perfect | V-ing perfect |
can I have used? can you have used? can he have used? can we have used? can you have used? can they have used? | can I have been using? can you have been using? can he have been using? can we have been using? can you have been using? can they have been using? |
Simple form | V-ing form |
can't I use? can't you use? can't he use? can't we use? can't you use? can't they use? | can't I be using? can't you be using? can't he be using? can't we be using? can't you be using? can't they be using? |
Perfect | V-ing perfect |
can't I have used? can't you have used? can't he have used? can't we have used? can't you have used? can't they have used? | can't I have been using? can't you have been using? can't he have been using? can't we have been using? can't you have been using? can't they have been using? |