English verb conjugation
CAN UPSPRING

Irregular verb: upspring - upsprang, upsprung - upsprung

Affirmation

Simple form	V-ing form
I can upspring you can upspring he can upspring we can upspring you can upspring they can upspring	I can be upspringing you can be upspringing he can be upspringing we can be upspringing you can be upspringing they can be upspringing
Perfect	V-ing perfect
I can have upsprung you can have upsprung he can have upsprung we can have upsprung you can have upsprung they can have upsprung	I can have been upspringing you can have been upspringing he can have been upspringing we can have been upspringing you can have been upspringing they can have been upspringing

Negation

Simple form	V-ing form
I can't upspring you can't upspring he can't upspring we can't upspring you can't upspring they can't upspring	I can't be upspringing you can't be upspringing he can't be upspringing we can't be upspringing you can't be upspringing they can't be upspringing
Perfect	V-ing perfect
I can't have upsprung you can't have upsprung he can't have upsprung we can't have upsprung you can't have upsprung they can't have upsprung	I can't have been upspringing you can't have been upspringing he can't have been upspringing we can't have been upspringing you can't have been upspringing they can't have been upspringing

Interrogative form

Simple form	V-ing form
can I upspring? can you upspring? can he upspring? can we upspring? can you upspring? can they upspring?	can I be upspringing? can you be upspringing? can he be upspringing? can we be upspringing? can you be upspringing? can they be upspringing?
Perfect	V-ing perfect
can I have upsprung? can you have upsprung? can he have upsprung? can we have upsprung? can you have upsprung? can they have upsprung?	can I have been upspringing? can you have been upspringing? can he have been upspringing? can we have been upspringing? can you have been upspringing? can they have been upspringing?

Interro-negative form

Simple form	V-ing form
can't I upspring? can't you upspring? can't he upspring? can't we upspring? can't you upspring? can't they upspring?	can't I be upspringing? can't you be upspringing? can't he be upspringing? can't we be upspringing? can't you be upspringing? can't they be upspringing?
Perfect	V-ing perfect
can't I have upsprung? can't you have upsprung? can't he have upsprung? can't we have upsprung? can't you have upsprung? can't they have upsprung?	can't I have been upspringing? can't you have been upspringing? can't he have been upspringing? can't we have been upspringing? can't you have been upspringing? can't they have been upspringing?