I could misspell you could misspell she could misspell we could misspell you could misspell they could misspell
V-ing form
I could be misspelling you could be misspelling she could be misspelling we could be misspelling you could be misspelling they could be misspelling
Perfect
I could have misspelled, misspelt you could have misspelled, misspelt she could have misspelled, misspelt we could have misspelled, misspelt you could have misspelled, misspelt they could have misspelled, misspelt
V-ing perfect
I could have been misspelling you could have been misspelling she could have been misspelling we could have been misspelling you could have been misspelling they could have been misspelling
Negation
Simple form
I couldn't misspell you couldn't misspell she couldn't misspell we couldn't misspell you couldn't misspell they couldn't misspell
V-ing form
I couldn't be misspelling you couldn't be misspelling she couldn't be misspelling we couldn't be misspelling you couldn't be misspelling they couldn't be misspelling
Perfect
I couldn't have misspelled, misspelt you couldn't have misspelled, misspelt she couldn't have misspelled, misspelt we couldn't have misspelled, misspelt you couldn't have misspelled, misspelt they couldn't have misspelled, misspelt
V-ing perfect
I couldn't have been misspelling you couldn't have been misspelling she couldn't have been misspelling we couldn't have been misspelling you couldn't have been misspelling they couldn't have been misspelling
Interrogative form
Simple form
could I misspell? could you misspell? could she misspell? could we misspell? could you misspell? could they misspell?
V-ing form
could I be misspelling? could you be misspelling? could she be misspelling? could we be misspelling? could you be misspelling? could they be misspelling?
Perfect
could I have misspelled, misspelt? could you have misspelled, misspelt? could she have misspelled, misspelt? could we have misspelled, misspelt? could you have misspelled, misspelt? could they have misspelled, misspelt?
V-ing perfect
could I have been misspelling? could you have been misspelling? could she have been misspelling? could we have been misspelling? could you have been misspelling? could they have been misspelling?
Interro-negative form
Simple form
couldn't I misspell? couldn't you misspell? couldn't she misspell? couldn't we misspell? couldn't you misspell? couldn't they misspell?
V-ing form
couldn't I be misspelling? couldn't you be misspelling? couldn't she be misspelling? couldn't we be misspelling? couldn't you be misspelling? couldn't they be misspelling?
Perfect
couldn't I have misspelled, misspelt? couldn't you have misspelled, misspelt? couldn't she have misspelled, misspelt? couldn't we have misspelled, misspelt? couldn't you have misspelled, misspelt? couldn't they have misspelled, misspelt?
V-ing perfect
couldn't I have been misspelling? couldn't you have been misspelling? couldn't she have been misspelling? couldn't we have been misspelling? couldn't you have been misspelling? couldn't they have been misspelling?