can upswing
Irregular verb: upswing - upswung- upswung

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can upswing
you can upswing
he can upswing
we can upswing
you can upswing
they can upswing 	I can be upswinging
you can be upswinging
he can be upswinging
we can be upswinging
you can be upswinging
they can be upswinging	I can have upswung
you can have upswung
he can have upswung
we can have upswung
you can have upswung
they can have upswung	I can have been upswinging
you can have been upswinging
he can have been upswinging
we can have been upswinging
you can have been upswinging
they can have been upswinging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't upswing
you can't upswing
he can't upswing
we can't upswing
you can't upswing
they can't upswing 	I can't be upswinging
you can't be upswinging
he can't be upswinging
we can't be upswinging
you can't be upswinging
they can't be upswinging	I can't have upswung
you can't have upswung
he can't have upswung
we can't have upswung
you can't have upswung
they can't have upswung	I can't have been upswinging
you can't have been upswinging
he can't have been upswinging
we can't have been upswinging
you can't have been upswinging
they can't have been upswinging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I upswing?
can you upswing?
can he upswing?
can we upswing?
can you upswing?
can they upswing? 	can I be upswinging?
can you be upswinging?
can he be upswinging?
can we be upswinging?
can you be upswinging?
can they be upswinging? 	can I have upswung?
can you have upswung?
can he have upswung?
can we have upswung?
can you have upswung?
can they have upswung? 	can I have been upswinging?
can you have been upswinging?
can he have been upswinging?
can we have been upswinging?
can you have been upswinging?
can they have been upswinging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I upswing?
can't you upswing?
can't he upswing?
can't we upswing?
can't you upswing?
can't they upswing? 	can't I be upswinging?
can't you be upswinging?
can't he be upswinging?
can't we be upswinging?
can't you be upswinging?
can't they be upswinging? 	can't I have upswung?
can't you have upswung?
can't he have upswung?
can't we have upswung?
can't you have upswung?
can't they have upswung? 	can't I have been upswinging?
can't you have been upswinging?
can't he have been upswinging?
can't we have been upswinging?
can't you have been upswinging?
can't they have been upswinging?