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