I could initialize you could initialize he could initialize we could initialize you could initialize they could initialize
V-ing form
I could be initializing you could be initializing he could be initializing we could be initializing you could be initializing they could be initializing
Perfect
I could have initialized you could have initialized he could have initialized we could have initialized you could have initialized they could have initialized
V-ing perfect
I could have been initializing you could have been initializing he could have been initializing we could have been initializing you could have been initializing they could have been initializing
Negation
Simple form
I couldn't initialize you couldn't initialize he couldn't initialize we couldn't initialize you couldn't initialize they couldn't initialize
V-ing form
I couldn't be initializing you couldn't be initializing he couldn't be initializing we couldn't be initializing you couldn't be initializing they couldn't be initializing
Perfect
I couldn't have initialized you couldn't have initialized he couldn't have initialized we couldn't have initialized you couldn't have initialized they couldn't have initialized
V-ing perfect
I couldn't have been initializing you couldn't have been initializing he couldn't have been initializing we couldn't have been initializing you couldn't have been initializing they couldn't have been initializing
Interrogative form
Simple form
could I initialize? could you initialize? could he initialize? could we initialize? could you initialize? could they initialize?
V-ing form
could I be initializing? could you be initializing? could he be initializing? could we be initializing? could you be initializing? could they be initializing?
Perfect
could I have initialized? could you have initialized? could he have initialized? could we have initialized? could you have initialized? could they have initialized?
V-ing perfect
could I have been initializing? could you have been initializing? could he have been initializing? could we have been initializing? could you have been initializing? could they have been initializing?
Interro-negative form
Simple form
couldn't I initialize? couldn't you initialize? couldn't he initialize? couldn't we initialize? couldn't you initialize? couldn't they initialize?
V-ing form
couldn't I be initializing? couldn't you be initializing? couldn't he be initializing? couldn't we be initializing? couldn't you be initializing? couldn't they be initializing?
Perfect
couldn't I have initialized? couldn't you have initialized? couldn't he have initialized? couldn't we have initialized? couldn't you have initialized? couldn't they have initialized?
V-ing perfect
couldn't I have been initializing? couldn't you have been initializing? couldn't he have been initializing? couldn't we have been initializing? couldn't you have been initializing? couldn't they have been initializing?