English verb conjugation
COULD PREOCCUPY

Regular verb: preoccupy - preoccupied - preoccupied

Affirmation

Simple form	V-ing form
I could preoccupy you could preoccupy she could preoccupy we could preoccupy you could preoccupy they could preoccupy	I could be preoccupying you could be preoccupying she could be preoccupying we could be preoccupying you could be preoccupying they could be preoccupying
Perfect	V-ing perfect
I could have preoccupied you could have preoccupied she could have preoccupied we could have preoccupied you could have preoccupied they could have preoccupied	I could have been preoccupying you could have been preoccupying she could have been preoccupying we could have been preoccupying you could have been preoccupying they could have been preoccupying

Negation

Simple form	V-ing form
I couldn't preoccupy you couldn't preoccupy she couldn't preoccupy we couldn't preoccupy you couldn't preoccupy they couldn't preoccupy	I couldn't be preoccupying you couldn't be preoccupying she couldn't be preoccupying we couldn't be preoccupying you couldn't be preoccupying they couldn't be preoccupying
Perfect	V-ing perfect
I couldn't have preoccupied you couldn't have preoccupied she couldn't have preoccupied we couldn't have preoccupied you couldn't have preoccupied they couldn't have preoccupied	I couldn't have been preoccupying you couldn't have been preoccupying she couldn't have been preoccupying we couldn't have been preoccupying you couldn't have been preoccupying they couldn't have been preoccupying

Interrogative form

Simple form	V-ing form
could I preoccupy? could you preoccupy? could she preoccupy? could we preoccupy? could you preoccupy? could they preoccupy?	could I be preoccupying? could you be preoccupying? could she be preoccupying? could we be preoccupying? could you be preoccupying? could they be preoccupying?
Perfect	V-ing perfect
could I have preoccupied? could you have preoccupied? could she have preoccupied? could we have preoccupied? could you have preoccupied? could they have preoccupied?	could I have been preoccupying? could you have been preoccupying? could she have been preoccupying? could we have been preoccupying? could you have been preoccupying? could they have been preoccupying?

Interro-negative form

Simple form	V-ing form
couldn't I preoccupy? couldn't you preoccupy? couldn't she preoccupy? couldn't we preoccupy? couldn't you preoccupy? couldn't they preoccupy?	couldn't I be preoccupying? couldn't you be preoccupying? couldn't she be preoccupying? couldn't we be preoccupying? couldn't you be preoccupying? couldn't they be preoccupying?
Perfect	V-ing perfect
couldn't I have preoccupied? couldn't you have preoccupied? couldn't she have preoccupied? couldn't we have preoccupied? couldn't you have preoccupied? couldn't they have preoccupied?	couldn't I have been preoccupying? couldn't you have been preoccupying? couldn't she have been preoccupying? couldn't we have been preoccupying? couldn't you have been preoccupying? couldn't they have been preoccupying?