I can irrigate you can irrigate he can irrigate we can irrigate you can irrigate they can irrigate
V-ing form
I can be irrigating you can be irrigating he can be irrigating we can be irrigating you can be irrigating they can be irrigating
Perfect
I can have irrigated you can have irrigated he can have irrigated we can have irrigated you can have irrigated they can have irrigated
V-ing perfect
I can have been irrigating you can have been irrigating he can have been irrigating we can have been irrigating you can have been irrigating they can have been irrigating
Negation
Simple form
I can't irrigate you can't irrigate he can't irrigate we can't irrigate you can't irrigate they can't irrigate
V-ing form
I can't be irrigating you can't be irrigating he can't be irrigating we can't be irrigating you can't be irrigating they can't be irrigating
Perfect
I can't have irrigated you can't have irrigated he can't have irrigated we can't have irrigated you can't have irrigated they can't have irrigated
V-ing perfect
I can't have been irrigating you can't have been irrigating he can't have been irrigating we can't have been irrigating you can't have been irrigating they can't have been irrigating
Interrogative form
Simple form
can I irrigate? can you irrigate? can he irrigate? can we irrigate? can you irrigate? can they irrigate?
V-ing form
can I be irrigating? can you be irrigating? can he be irrigating? can we be irrigating? can you be irrigating? can they be irrigating?
Perfect
can I have irrigated? can you have irrigated? can he have irrigated? can we have irrigated? can you have irrigated? can they have irrigated?
V-ing perfect
can I have been irrigating? can you have been irrigating? can he have been irrigating? can we have been irrigating? can you have been irrigating? can they have been irrigating?
Interro-negative form
Simple form
can't I irrigate? can't you irrigate? can't he irrigate? can't we irrigate? can't you irrigate? can't they irrigate?
V-ing form
can't I be irrigating? can't you be irrigating? can't he be irrigating? can't we be irrigating? can't you be irrigating? can't they be irrigating?
Perfect
can't I have irrigated? can't you have irrigated? can't he have irrigated? can't we have irrigated? can't you have irrigated? can't they have irrigated?
V-ing perfect
can't I have been irrigating? can't you have been irrigating? can't he have been irrigating? can't we have been irrigating? can't you have been irrigating? can't they have been irrigating?