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