can clinch
Regular verb: clinch - clinched- clinched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can clinch
you can clinch
he can clinch
we can clinch
you can clinch
they can clinch 	I can be clinching
you can be clinching
he can be clinching
we can be clinching
you can be clinching
they can be clinching	I can have clinched
you can have clinched
he can have clinched
we can have clinched
you can have clinched
they can have clinched	I can have been clinching
you can have been clinching
he can have been clinching
we can have been clinching
you can have been clinching
they can have been clinching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't clinch
you can't clinch
he can't clinch
we can't clinch
you can't clinch
they can't clinch 	I can't be clinching
you can't be clinching
he can't be clinching
we can't be clinching
you can't be clinching
they can't be clinching	I can't have clinched
you can't have clinched
he can't have clinched
we can't have clinched
you can't have clinched
they can't have clinched	I can't have been clinching
you can't have been clinching
he can't have been clinching
we can't have been clinching
you can't have been clinching
they can't have been clinching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I clinch?
can you clinch?
can he clinch?
can we clinch?
can you clinch?
can they clinch? 	can I be clinching?
can you be clinching?
can he be clinching?
can we be clinching?
can you be clinching?
can they be clinching? 	can I have clinched?
can you have clinched?
can he have clinched?
can we have clinched?
can you have clinched?
can they have clinched? 	can I have been clinching?
can you have been clinching?
can he have been clinching?
can we have been clinching?
can you have been clinching?
can they have been clinching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I clinch?
can't you clinch?
can't he clinch?
can't we clinch?
can't you clinch?
can't they clinch? 	can't I be clinching?
can't you be clinching?
can't he be clinching?
can't we be clinching?
can't you be clinching?
can't they be clinching? 	can't I have clinched?
can't you have clinched?
can't he have clinched?
can't we have clinched?
can't you have clinched?
can't they have clinched? 	can't I have been clinching?
can't you have been clinching?
can't he have been clinching?
can't we have been clinching?
can't you have been clinching?
can't they have been clinching?