I could individualize you could individualize she could individualize we could individualize you could individualize they could individualize
V-ing form
I could be individualizing you could be individualizing she could be individualizing we could be individualizing you could be individualizing they could be individualizing
Perfect
I could have individualized you could have individualized she could have individualized we could have individualized you could have individualized they could have individualized
V-ing perfect
I could have been individualizing you could have been individualizing she could have been individualizing we could have been individualizing you could have been individualizing they could have been individualizing
Negation
Simple form
I couldn't individualize you couldn't individualize she couldn't individualize we couldn't individualize you couldn't individualize they couldn't individualize
V-ing form
I couldn't be individualizing you couldn't be individualizing she couldn't be individualizing we couldn't be individualizing you couldn't be individualizing they couldn't be individualizing
Perfect
I couldn't have individualized you couldn't have individualized she couldn't have individualized we couldn't have individualized you couldn't have individualized they couldn't have individualized
V-ing perfect
I couldn't have been individualizing you couldn't have been individualizing she couldn't have been individualizing we couldn't have been individualizing you couldn't have been individualizing they couldn't have been individualizing
Interrogative form
Simple form
could I individualize? could you individualize? could she individualize? could we individualize? could you individualize? could they individualize?
V-ing form
could I be individualizing? could you be individualizing? could she be individualizing? could we be individualizing? could you be individualizing? could they be individualizing?
Perfect
could I have individualized? could you have individualized? could she have individualized? could we have individualized? could you have individualized? could they have individualized?
V-ing perfect
could I have been individualizing? could you have been individualizing? could she have been individualizing? could we have been individualizing? could you have been individualizing? could they have been individualizing?
Interro-negative form
Simple form
couldn't I individualize? couldn't you individualize? couldn't she individualize? couldn't we individualize? couldn't you individualize? couldn't they individualize?
V-ing form
couldn't I be individualizing? couldn't you be individualizing? couldn't she be individualizing? couldn't we be individualizing? couldn't you be individualizing? couldn't they be individualizing?
Perfect
couldn't I have individualized? couldn't you have individualized? couldn't she have individualized? couldn't we have individualized? couldn't you have individualized? couldn't they have individualized?
V-ing perfect
couldn't I have been individualizing? couldn't you have been individualizing? couldn't she have been individualizing? couldn't we have been individualizing? couldn't you have been individualizing? couldn't they have been individualizing?