English verb conjugation
COULD ITEM

Regular verb: item - itemed - itemed

Affirmation

Simple form	V-ing form
I could item you could item he could item we could item you could item they could item	I could be iteming you could be iteming he could be iteming we could be iteming you could be iteming they could be iteming
Perfect	V-ing perfect
I could have itemed you could have itemed he could have itemed we could have itemed you could have itemed they could have itemed	I could have been iteming you could have been iteming he could have been iteming we could have been iteming you could have been iteming they could have been iteming

Negation

Simple form	V-ing form
I couldn't item you couldn't item he couldn't item we couldn't item you couldn't item they couldn't item	I couldn't be iteming you couldn't be iteming he couldn't be iteming we couldn't be iteming you couldn't be iteming they couldn't be iteming
Perfect	V-ing perfect
I couldn't have itemed you couldn't have itemed he couldn't have itemed we couldn't have itemed you couldn't have itemed they couldn't have itemed	I couldn't have been iteming you couldn't have been iteming he couldn't have been iteming we couldn't have been iteming you couldn't have been iteming they couldn't have been iteming

Interrogative form

Simple form	V-ing form
could I item? could you item? could he item? could we item? could you item? could they item?	could I be iteming? could you be iteming? could he be iteming? could we be iteming? could you be iteming? could they be iteming?
Perfect	V-ing perfect
could I have itemed? could you have itemed? could he have itemed? could we have itemed? could you have itemed? could they have itemed?	could I have been iteming? could you have been iteming? could he have been iteming? could we have been iteming? could you have been iteming? could they have been iteming?

Interro-negative form

Simple form	V-ing form
couldn't I item? couldn't you item? couldn't he item? couldn't we item? couldn't you item? couldn't they item?	couldn't I be iteming? couldn't you be iteming? couldn't he be iteming? couldn't we be iteming? couldn't you be iteming? couldn't they be iteming?
Perfect	V-ing perfect
couldn't I have itemed? couldn't you have itemed? couldn't he have itemed? couldn't we have itemed? couldn't you have itemed? couldn't they have itemed?	couldn't I have been iteming? couldn't you have been iteming? couldn't he have been iteming? couldn't we have been iteming? couldn't you have been iteming? couldn't they have been iteming?