I can envy you can envy she can envy we can envy you can envy they can envy
V-ing form
I can be envying you can be envying she can be envying we can be envying you can be envying they can be envying
Perfect
I can have envied you can have envied she can have envied we can have envied you can have envied they can have envied
V-ing perfect
I can have been envying you can have been envying she can have been envying we can have been envying you can have been envying they can have been envying
Negation
Simple form
I cannot envy you cannot envy she cannot envy we cannot envy you cannot envy they cannot envy
V-ing form
I cannot be envying you cannot be envying she cannot be envying we cannot be envying you cannot be envying they cannot be envying
Perfect
I cannot have envied you cannot have envied she cannot have envied we cannot have envied you cannot have envied they cannot have envied
V-ing perfect
I cannot have been envying you cannot have been envying she cannot have been envying we cannot have been envying you cannot have been envying they cannot have been envying
Interrogative form
Simple form
can I envy? can you envy? can she envy? can we envy? can you envy? can they envy?
V-ing form
can I be envying? can you be envying? can she be envying? can we be envying? can you be envying? can they be envying?
Perfect
can I have envied? can you have envied? can she have envied? can we have envied? can you have envied? can they have envied?
V-ing perfect
can I have been envying? can you have been envying? can she have been envying? can we have been envying? can you have been envying? can they have been envying?
Interro-negative form
Simple form
can I not envy? can you not envy? can she not envy? can we not envy? can you not envy? can they not envy?
V-ing form
can I not be envying? can you not be envying? can she not be envying? can we not be envying? can you not be envying? can they not be envying?
Perfect
can I not have envied? can you not have envied? can she not have envied? can we not have envied? can you not have envied? can they not have envied?
V-ing perfect
can I not have been envying? can you not have been envying? can she not have been envying? can we not have been envying? can you not have been envying? can they not have been envying?