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