I can astound you can astound he can astound we can astound you can astound they can astound
V-ing form
I can be astounding you can be astounding he can be astounding we can be astounding you can be astounding they can be astounding
Perfect
I can have astounded you can have astounded he can have astounded we can have astounded you can have astounded they can have astounded
V-ing perfect
I can have been astounding you can have been astounding he can have been astounding we can have been astounding you can have been astounding they can have been astounding
Negation
Simple form
I cannot astound you cannot astound he cannot astound we cannot astound you cannot astound they cannot astound
V-ing form
I cannot be astounding you cannot be astounding he cannot be astounding we cannot be astounding you cannot be astounding they cannot be astounding
Perfect
I cannot have astounded you cannot have astounded he cannot have astounded we cannot have astounded you cannot have astounded they cannot have astounded
V-ing perfect
I cannot have been astounding you cannot have been astounding he cannot have been astounding we cannot have been astounding you cannot have been astounding they cannot have been astounding
Interrogative form
Simple form
can I astound? can you astound? can he astound? can we astound? can you astound? can they astound?
V-ing form
can I be astounding? can you be astounding? can he be astounding? can we be astounding? can you be astounding? can they be astounding?
Perfect
can I have astounded? can you have astounded? can he have astounded? can we have astounded? can you have astounded? can they have astounded?
V-ing perfect
can I have been astounding? can you have been astounding? can he have been astounding? can we have been astounding? can you have been astounding? can they have been astounding?
Interro-negative form
Simple form
can I not astound? can you not astound? can he not astound? can we not astound? can you not astound? can they not astound?
V-ing form
can I not be astounding? can you not be astounding? can he not be astounding? can we not be astounding? can you not be astounding? can they not be astounding?
Perfect
can I not have astounded? can you not have astounded? can he not have astounded? can we not have astounded? can you not have astounded? can they not have astounded?
V-ing perfect
can I not have been astounding? can you not have been astounding? can he not have been astounding? can we not have been astounding? can you not have been astounding? can they not have been astounding?