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