I could belie you could belie she could belie we could belie you could belie they could belie
V-ing form
I could be belying you could be belying she could be belying we could be belying you could be belying they could be belying
Perfect
I could have belied you could have belied she 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 she 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 she 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 she 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 she 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 she 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 she belie? could we belie? could you belie? could they belie?
V-ing form
could I be belying? could you be belying? could she be belying? could we be belying? could you be belying? could they be belying?
Perfect
could I have belied? could you have belied? could she 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 she 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 she 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 she 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 she 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 she have been belying? couldn't we have been belying? couldn't you have been belying? couldn't they have been belying?