I can visualise you can visualise he can visualise we can visualise you can visualise they can visualise
V-ing form
I can be visualising you can be visualising he can be visualising we can be visualising you can be visualising they can be visualising
Perfect
I can have visualised you can have visualised he can have visualised we can have visualised you can have visualised they can have visualised
V-ing perfect
I can have been visualising you can have been visualising he can have been visualising we can have been visualising you can have been visualising they can have been visualising
Negation
Simple form
I cannot visualise you cannot visualise he cannot visualise we cannot visualise you cannot visualise they cannot visualise
V-ing form
I cannot be visualising you cannot be visualising he cannot be visualising we cannot be visualising you cannot be visualising they cannot be visualising
Perfect
I cannot have visualised you cannot have visualised he cannot have visualised we cannot have visualised you cannot have visualised they cannot have visualised
V-ing perfect
I cannot have been visualising you cannot have been visualising he cannot have been visualising we cannot have been visualising you cannot have been visualising they cannot have been visualising
Interrogative form
Simple form
can I visualise? can you visualise? can he visualise? can we visualise? can you visualise? can they visualise?
V-ing form
can I be visualising? can you be visualising? can he be visualising? can we be visualising? can you be visualising? can they be visualising?
Perfect
can I have visualised? can you have visualised? can he have visualised? can we have visualised? can you have visualised? can they have visualised?
V-ing perfect
can I have been visualising? can you have been visualising? can he have been visualising? can we have been visualising? can you have been visualising? can they have been visualising?
Interro-negative form
Simple form
can I not visualise? can you not visualise? can he not visualise? can we not visualise? can you not visualise? can they not visualise?
V-ing form
can I not be visualising? can you not be visualising? can he not be visualising? can we not be visualising? can you not be visualising? can they not be visualising?
Perfect
can I not have visualised? can you not have visualised? can he not have visualised? can we not have visualised? can you not have visualised? can they not have visualised?
V-ing perfect
can I not have been visualising? can you not have been visualising? can he not have been visualising? can we not have been visualising? can you not have been visualising? can they not have been visualising?