can invert
Regular verb: invert - inverted- inverted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can invert
you can invert
he can invert
we can invert
you can invert
they can invert 	I can be inverting
you can be inverting
he can be inverting
we can be inverting
you can be inverting
they can be inverting	I can have inverted
you can have inverted
he can have inverted
we can have inverted
you can have inverted
they can have inverted	I can have been inverting
you can have been inverting
he can have been inverting
we can have been inverting
you can have been inverting
they can have been inverting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot invert
you cannot invert
he cannot invert
we cannot invert
you cannot invert
they cannot invert 	I cannot be inverting
you cannot be inverting
he cannot be inverting
we cannot be inverting
you cannot be inverting
they cannot be inverting	I cannot have inverted
you cannot have inverted
he cannot have inverted
we cannot have inverted
you cannot have inverted
they cannot have inverted	I cannot have been inverting
you cannot have been inverting
he cannot have been inverting
we cannot have been inverting
you cannot have been inverting
they cannot have been inverting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I invert?
can you invert?
can he invert?
can we invert?
can you invert?
can they invert? 	can I be inverting?
can you be inverting?
can he be inverting?
can we be inverting?
can you be inverting?
can they be inverting? 	can I have inverted?
can you have inverted?
can he have inverted?
can we have inverted?
can you have inverted?
can they have inverted? 	can I have been inverting?
can you have been inverting?
can he have been inverting?
can we have been inverting?
can you have been inverting?
can they have been inverting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not invert?
can you not invert?
can he not invert?
can we not invert?
can you not invert?
can they not invert? 	can I not be inverting?
can you not be inverting?
can he not be inverting?
can we not be inverting?
can you not be inverting?
can they not be inverting? 	can I not have inverted?
can you not have inverted?
can he not have inverted?
can we not have inverted?
can you not have inverted?
can they not have inverted? 	can I not have been inverting?
can you not have been inverting?
can he not have been inverting?
can we not have been inverting?
can you not have been inverting?
can they not have been inverting?