I can harass you can harass he can harass we can harass you can harass they can harass
V-ing form
I can be harassing you can be harassing he can be harassing we can be harassing you can be harassing they can be harassing
Perfect
I can have harassed you can have harassed he can have harassed we can have harassed you can have harassed they can have harassed
V-ing perfect
I can have been harassing you can have been harassing he can have been harassing we can have been harassing you can have been harassing they can have been harassing
Negation
Simple form
I can't harass you can't harass he can't harass we can't harass you can't harass they can't harass
V-ing form
I can't be harassing you can't be harassing he can't be harassing we can't be harassing you can't be harassing they can't be harassing
Perfect
I can't have harassed you can't have harassed he can't have harassed we can't have harassed you can't have harassed they can't have harassed
V-ing perfect
I can't have been harassing you can't have been harassing he can't have been harassing we can't have been harassing you can't have been harassing they can't have been harassing
Interrogative form
Simple form
can I harass? can you harass? can he harass? can we harass? can you harass? can they harass?
V-ing form
can I be harassing? can you be harassing? can he be harassing? can we be harassing? can you be harassing? can they be harassing?
Perfect
can I have harassed? can you have harassed? can he have harassed? can we have harassed? can you have harassed? can they have harassed?
V-ing perfect
can I have been harassing? can you have been harassing? can he have been harassing? can we have been harassing? can you have been harassing? can they have been harassing?
Interro-negative form
Simple form
can't I harass? can't you harass? can't he harass? can't we harass? can't you harass? can't they harass?
V-ing form
can't I be harassing? can't you be harassing? can't he be harassing? can't we be harassing? can't you be harassing? can't they be harassing?
Perfect
can't I have harassed? can't you have harassed? can't he have harassed? can't we have harassed? can't you have harassed? can't they have harassed?
V-ing perfect
can't I have been harassing? can't you have been harassing? can't he have been harassing? can't we have been harassing? can't you have been harassing? can't they have been harassing?