I can fade you can fade he can fade we can fade you can fade they can fade
V-ing form
I can be fading you can be fading he can be fading we can be fading you can be fading they can be fading
Perfect
I can have faded you can have faded he can have faded we can have faded you can have faded they can have faded
V-ing perfect
I can have been fading you can have been fading he can have been fading we can have been fading you can have been fading they can have been fading
Negation
Simple form
I cannot fade you cannot fade he cannot fade we cannot fade you cannot fade they cannot fade
V-ing form
I cannot be fading you cannot be fading he cannot be fading we cannot be fading you cannot be fading they cannot be fading
Perfect
I cannot have faded you cannot have faded he cannot have faded we cannot have faded you cannot have faded they cannot have faded
V-ing perfect
I cannot have been fading you cannot have been fading he cannot have been fading we cannot have been fading you cannot have been fading they cannot have been fading
Interrogative form
Simple form
can I fade? can you fade? can he fade? can we fade? can you fade? can they fade?
V-ing form
can I be fading? can you be fading? can he be fading? can we be fading? can you be fading? can they be fading?
Perfect
can I have faded? can you have faded? can he have faded? can we have faded? can you have faded? can they have faded?
V-ing perfect
can I have been fading? can you have been fading? can he have been fading? can we have been fading? can you have been fading? can they have been fading?
Interro-negative form
Simple form
can I not fade? can you not fade? can he not fade? can we not fade? can you not fade? can they not fade?
V-ing form
can I not be fading? can you not be fading? can he not be fading? can we not be fading? can you not be fading? can they not be fading?
Perfect
can I not have faded? can you not have faded? can he not have faded? can we not have faded? can you not have faded? can they not have faded?
V-ing perfect
can I not have been fading? can you not have been fading? can he not have been fading? can we not have been fading? can you not have been fading? can they not have been fading?