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