I can precipitate you can precipitate she can precipitate we can precipitate you can precipitate they can precipitate
V-ing form
I can be precipitating you can be precipitating she can be precipitating we can be precipitating you can be precipitating they can be precipitating
Perfect
I can have precipitated you can have precipitated she 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 she 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 she 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 she 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 she 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 she 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 she precipitate? can we precipitate? can you precipitate? can they precipitate?
V-ing form
can I be precipitating? can you be precipitating? can she be precipitating? can we be precipitating? can you be precipitating? can they be precipitating?
Perfect
can I have precipitated? can you have precipitated? can she 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 she 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 she 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 she 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 she 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 she have been precipitating? can't we have been precipitating? can't you have been precipitating? can't they have been precipitating?