can asterisk
Regular verb: asterisk - asterisked- asterisked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can asterisk
you can asterisk
she can asterisk
we can asterisk
you can asterisk
they can asterisk 	I can be asterisking
you can be asterisking
she can be asterisking
we can be asterisking
you can be asterisking
they can be asterisking	I can have asterisked
you can have asterisked
she can have asterisked
we can have asterisked
you can have asterisked
they can have asterisked	I can have been asterisking
you can have been asterisking
she can have been asterisking
we can have been asterisking
you can have been asterisking
they can have been asterisking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot asterisk
you cannot asterisk
she cannot asterisk
we cannot asterisk
you cannot asterisk
they cannot asterisk 	I cannot be asterisking
you cannot be asterisking
she cannot be asterisking
we cannot be asterisking
you cannot be asterisking
they cannot be asterisking	I cannot have asterisked
you cannot have asterisked
she cannot have asterisked
we cannot have asterisked
you cannot have asterisked
they cannot have asterisked	I cannot have been asterisking
you cannot have been asterisking
she cannot have been asterisking
we cannot have been asterisking
you cannot have been asterisking
they cannot have been asterisking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I asterisk?
can you asterisk?
can she asterisk?
can we asterisk?
can you asterisk?
can they asterisk? 	can I be asterisking?
can you be asterisking?
can she be asterisking?
can we be asterisking?
can you be asterisking?
can they be asterisking? 	can I have asterisked?
can you have asterisked?
can she have asterisked?
can we have asterisked?
can you have asterisked?
can they have asterisked? 	can I have been asterisking?
can you have been asterisking?
can she have been asterisking?
can we have been asterisking?
can you have been asterisking?
can they have been asterisking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not asterisk?
can you not asterisk?
can she not asterisk?
can we not asterisk?
can you not asterisk?
can they not asterisk? 	can I not be asterisking?
can you not be asterisking?
can she not be asterisking?
can we not be asterisking?
can you not be asterisking?
can they not be asterisking? 	can I not have asterisked?
can you not have asterisked?
can she not have asterisked?
can we not have asterisked?
can you not have asterisked?
can they not have asterisked? 	can I not have been asterisking?
can you not have been asterisking?
can she not have been asterisking?
can we not have been asterisking?
can you not have been asterisking?
can they not have been asterisking?