I can precipitate you can precipitate he can precipitate we can precipitate you can precipitate they can precipitate
V-ing form
I can be precipitating you can be precipitating he can be precipitating we can be precipitating you can be precipitating they can be precipitating
Perfect
I can have precipitated you can have precipitated he can have precipitated we can have precipitated you can have precipitated they can have precipitated
V-ing perfect
I can have been precipitating you can have been precipitating he can have been precipitating we can have been precipitating you can have been precipitating they can have been precipitating
Negation
Simple form
I can't precipitate you can't precipitate he can't precipitate we can't precipitate you can't precipitate they can't precipitate
V-ing form
I can't be precipitating you can't be precipitating he can't be precipitating we can't be precipitating you can't be precipitating they can't be precipitating
Perfect
I can't have precipitated you can't have precipitated he can't have precipitated we can't have precipitated you can't have precipitated they can't have precipitated
V-ing perfect
I can't have been precipitating you can't have been precipitating he can't have been precipitating we can't have been precipitating you can't have been precipitating they can't have been precipitating
Interrogative form
Simple form
can I precipitate? can you precipitate? can he precipitate? can we precipitate? can you precipitate? can they precipitate?
V-ing form
can I be precipitating? can you be precipitating? can he be precipitating? can we be precipitating? can you be precipitating? can they be precipitating?
Perfect
can I have precipitated? can you have precipitated? can he have precipitated? can we have precipitated? can you have precipitated? can they have precipitated?
V-ing perfect
can I have been precipitating? can you have been precipitating? can he have been precipitating? can we have been precipitating? can you have been precipitating? can they have been precipitating?
Interro-negative form
Simple form
can't I precipitate? can't you precipitate? can't he precipitate? can't we precipitate? can't you precipitate? can't they precipitate?
V-ing form
can't I be precipitating? can't you be precipitating? can't he be precipitating? can't we be precipitating? can't you be precipitating? can't they be precipitating?
Perfect
can't I have precipitated? can't you have precipitated? can't he have precipitated? can't we have precipitated? can't you have precipitated? can't they have precipitated?
V-ing perfect
can't I have been precipitating? can't you have been precipitating? can't he have been precipitating? can't we have been precipitating? can't you have been precipitating? can't they have been precipitating?