can constringe
Regular verb: constringe - constringed- constringed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can constringe
you can constringe
she can constringe
we can constringe
you can constringe
they can constringe 	I can be constringing
you can be constringing
she can be constringing
we can be constringing
you can be constringing
they can be constringing	I can have constringed
you can have constringed
she can have constringed
we can have constringed
you can have constringed
they can have constringed	I can have been constringing
you can have been constringing
she can have been constringing
we can have been constringing
you can have been constringing
they can have been constringing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't constringe
you can't constringe
she can't constringe
we can't constringe
you can't constringe
they can't constringe 	I can't be constringing
you can't be constringing
she can't be constringing
we can't be constringing
you can't be constringing
they can't be constringing	I can't have constringed
you can't have constringed
she can't have constringed
we can't have constringed
you can't have constringed
they can't have constringed	I can't have been constringing
you can't have been constringing
she can't have been constringing
we can't have been constringing
you can't have been constringing
they can't have been constringing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I constringe?
can you constringe?
can she constringe?
can we constringe?
can you constringe?
can they constringe? 	can I be constringing?
can you be constringing?
can she be constringing?
can we be constringing?
can you be constringing?
can they be constringing? 	can I have constringed?
can you have constringed?
can she have constringed?
can we have constringed?
can you have constringed?
can they have constringed? 	can I have been constringing?
can you have been constringing?
can she have been constringing?
can we have been constringing?
can you have been constringing?
can they have been constringing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I constringe?
can't you constringe?
can't she constringe?
can't we constringe?
can't you constringe?
can't they constringe? 	can't I be constringing?
can't you be constringing?
can't she be constringing?
can't we be constringing?
can't you be constringing?
can't they be constringing? 	can't I have constringed?
can't you have constringed?
can't she have constringed?
can't we have constringed?
can't you have constringed?
can't they have constringed? 	can't I have been constringing?
can't you have been constringing?
can't she have been constringing?
can't we have been constringing?
can't you have been constringing?
can't they have been constringing?