English verb conjugation
COULD PERUSE

Regular verb: peruse - perused - perused

Affirmation

Simple form	V-ing form
I could peruse you could peruse he could peruse we could peruse you could peruse they could peruse	I could be perusing you could be perusing he could be perusing we could be perusing you could be perusing they could be perusing
Perfect	V-ing perfect
I could have perused you could have perused he could have perused we could have perused you could have perused they could have perused	I could have been perusing you could have been perusing he could have been perusing we could have been perusing you could have been perusing they could have been perusing

Negation

Simple form	V-ing form
I couldn't peruse you couldn't peruse he couldn't peruse we couldn't peruse you couldn't peruse they couldn't peruse	I couldn't be perusing you couldn't be perusing he couldn't be perusing we couldn't be perusing you couldn't be perusing they couldn't be perusing
Perfect	V-ing perfect
I couldn't have perused you couldn't have perused he couldn't have perused we couldn't have perused you couldn't have perused they couldn't have perused	I couldn't have been perusing you couldn't have been perusing he couldn't have been perusing we couldn't have been perusing you couldn't have been perusing they couldn't have been perusing

Interrogative form

Simple form	V-ing form
could I peruse? could you peruse? could he peruse? could we peruse? could you peruse? could they peruse?	could I be perusing? could you be perusing? could he be perusing? could we be perusing? could you be perusing? could they be perusing?
Perfect	V-ing perfect
could I have perused? could you have perused? could he have perused? could we have perused? could you have perused? could they have perused?	could I have been perusing? could you have been perusing? could he have been perusing? could we have been perusing? could you have been perusing? could they have been perusing?

Interro-negative form

Simple form	V-ing form
couldn't I peruse? couldn't you peruse? couldn't he peruse? couldn't we peruse? couldn't you peruse? couldn't they peruse?	couldn't I be perusing? couldn't you be perusing? couldn't he be perusing? couldn't we be perusing? couldn't you be perusing? couldn't they be perusing?
Perfect	V-ing perfect
couldn't I have perused? couldn't you have perused? couldn't he have perused? couldn't we have perused? couldn't you have perused? couldn't they have perused?	couldn't I have been perusing? couldn't you have been perusing? couldn't he have been perusing? couldn't we have been perusing? couldn't you have been perusing? couldn't they have been perusing?