can unclasp
Regular verb: unclasp - unclasped- unclasped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can unclasp
you can unclasp
he can unclasp
we can unclasp
you can unclasp
they can unclasp 	I can be unclasping
you can be unclasping
he can be unclasping
we can be unclasping
you can be unclasping
they can be unclasping	I can have unclasped
you can have unclasped
he can have unclasped
we can have unclasped
you can have unclasped
they can have unclasped	I can have been unclasping
you can have been unclasping
he can have been unclasping
we can have been unclasping
you can have been unclasping
they can have been unclasping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't unclasp
you can't unclasp
he can't unclasp
we can't unclasp
you can't unclasp
they can't unclasp 	I can't be unclasping
you can't be unclasping
he can't be unclasping
we can't be unclasping
you can't be unclasping
they can't be unclasping	I can't have unclasped
you can't have unclasped
he can't have unclasped
we can't have unclasped
you can't have unclasped
they can't have unclasped	I can't have been unclasping
you can't have been unclasping
he can't have been unclasping
we can't have been unclasping
you can't have been unclasping
they can't have been unclasping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I unclasp?
can you unclasp?
can he unclasp?
can we unclasp?
can you unclasp?
can they unclasp? 	can I be unclasping?
can you be unclasping?
can he be unclasping?
can we be unclasping?
can you be unclasping?
can they be unclasping? 	can I have unclasped?
can you have unclasped?
can he have unclasped?
can we have unclasped?
can you have unclasped?
can they have unclasped? 	can I have been unclasping?
can you have been unclasping?
can he have been unclasping?
can we have been unclasping?
can you have been unclasping?
can they have been unclasping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I unclasp?
can't you unclasp?
can't he unclasp?
can't we unclasp?
can't you unclasp?
can't they unclasp? 	can't I be unclasping?
can't you be unclasping?
can't he be unclasping?
can't we be unclasping?
can't you be unclasping?
can't they be unclasping? 	can't I have unclasped?
can't you have unclasped?
can't he have unclasped?
can't we have unclasped?
can't you have unclasped?
can't they have unclasped? 	can't I have been unclasping?
can't you have been unclasping?
can't he have been unclasping?
can't we have been unclasping?
can't you have been unclasping?
can't they have been unclasping?