I can blink you can blink she can blink we can blink you can blink they can blink
V-ing form
I can be blinking you can be blinking she can be blinking we can be blinking you can be blinking they can be blinking
Perfect
I can have blinked you can have blinked she can have blinked we can have blinked you can have blinked they can have blinked
V-ing perfect
I can have been blinking you can have been blinking she can have been blinking we can have been blinking you can have been blinking they can have been blinking
Negation
Simple form
I can't blink you can't blink she can't blink we can't blink you can't blink they can't blink
V-ing form
I can't be blinking you can't be blinking she can't be blinking we can't be blinking you can't be blinking they can't be blinking
Perfect
I can't have blinked you can't have blinked she can't have blinked we can't have blinked you can't have blinked they can't have blinked
V-ing perfect
I can't have been blinking you can't have been blinking she can't have been blinking we can't have been blinking you can't have been blinking they can't have been blinking
Interrogative form
Simple form
can I blink? can you blink? can she blink? can we blink? can you blink? can they blink?
V-ing form
can I be blinking? can you be blinking? can she be blinking? can we be blinking? can you be blinking? can they be blinking?
Perfect
can I have blinked? can you have blinked? can she have blinked? can we have blinked? can you have blinked? can they have blinked?
V-ing perfect
can I have been blinking? can you have been blinking? can she have been blinking? can we have been blinking? can you have been blinking? can they have been blinking?
Interro-negative form
Simple form
can't I blink? can't you blink? can't she blink? can't we blink? can't you blink? can't they blink?
V-ing form
can't I be blinking? can't you be blinking? can't she be blinking? can't we be blinking? can't you be blinking? can't they be blinking?
Perfect
can't I have blinked? can't you have blinked? can't she have blinked? can't we have blinked? can't you have blinked? can't they have blinked?
V-ing perfect
can't I have been blinking? can't you have been blinking? can't she have been blinking? can't we have been blinking? can't you have been blinking? can't they have been blinking?