could disassemble
Regular verb: disassemble - disassembled- disassembled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could disassemble
you could disassemble
she could disassemble
we could disassemble
you could disassemble
they could disassemble 	I could be disassembling
you could be disassembling
she could be disassembling
we could be disassembling
you could be disassembling
they could be disassembling	I could have disassembled
you could have disassembled
she could have disassembled
we could have disassembled
you could have disassembled
they could have disassembled	I could have been disassembling
you could have been disassembling
she could have been disassembling
we could have been disassembling
you could have been disassembling
they could have been disassembling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't disassemble
you couldn't disassemble
she couldn't disassemble
we couldn't disassemble
you couldn't disassemble
they couldn't disassemble 	I couldn't be disassembling
you couldn't be disassembling
she couldn't be disassembling
we couldn't be disassembling
you couldn't be disassembling
they couldn't be disassembling	I couldn't have disassembled
you couldn't have disassembled
she couldn't have disassembled
we couldn't have disassembled
you couldn't have disassembled
they couldn't have disassembled	I couldn't have been disassembling
you couldn't have been disassembling
she couldn't have been disassembling
we couldn't have been disassembling
you couldn't have been disassembling
they couldn't have been disassembling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I disassemble?
could you disassemble?
could she disassemble?
could we disassemble?
could you disassemble?
could they disassemble? 	could I be disassembling?
could you be disassembling?
could she be disassembling?
could we be disassembling?
could you be disassembling?
could they be disassembling? 	could I have disassembled?
could you have disassembled?
could she have disassembled?
could we have disassembled?
could you have disassembled?
could they have disassembled? 	could I have been disassembling?
could you have been disassembling?
could she have been disassembling?
could we have been disassembling?
could you have been disassembling?
could they have been disassembling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I disassemble?
couldn't you disassemble?
couldn't she disassemble?
couldn't we disassemble?
couldn't you disassemble?
couldn't they disassemble? 	couldn't I be disassembling?
couldn't you be disassembling?
couldn't she be disassembling?
couldn't we be disassembling?
couldn't you be disassembling?
couldn't they be disassembling? 	couldn't I have disassembled?
couldn't you have disassembled?
couldn't she have disassembled?
couldn't we have disassembled?
couldn't you have disassembled?
couldn't they have disassembled? 	couldn't I have been disassembling?
couldn't you have been disassembling?
couldn't she have been disassembling?
couldn't we have been disassembling?
couldn't you have been disassembling?
couldn't they have been disassembling?