could job
Regular verb: job - jobbed- jobbed

Affirmation 	
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I could job
you could job
she could job
we could job
you could job
they could job 	I could be jobbing
you could be jobbing
she could be jobbing
we could be jobbing
you could be jobbing
they could be jobbing	I could have jobbed
you could have jobbed
she could have jobbed
we could have jobbed
you could have jobbed
they could have jobbed	I could have been jobbing
you could have been jobbing
she could have been jobbing
we could have been jobbing
you could have been jobbing
they could have been jobbing	

Negation 	
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I couldn't job
you couldn't job
she couldn't job
we couldn't job
you couldn't job
they couldn't job 	I couldn't be jobbing
you couldn't be jobbing
she couldn't be jobbing
we couldn't be jobbing
you couldn't be jobbing
they couldn't be jobbing	I couldn't have jobbed
you couldn't have jobbed
she couldn't have jobbed
we couldn't have jobbed
you couldn't have jobbed
they couldn't have jobbed	I couldn't have been jobbing
you couldn't have been jobbing
she couldn't have been jobbing
we couldn't have been jobbing
you couldn't have been jobbing
they couldn't have been jobbing	

Interrogative form 	
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could I job?
could you job?
could she job?
could we job?
could you job?
could they job? 	could I be jobbing?
could you be jobbing?
could she be jobbing?
could we be jobbing?
could you be jobbing?
could they be jobbing? 	could I have jobbed?
could you have jobbed?
could she have jobbed?
could we have jobbed?
could you have jobbed?
could they have jobbed? 	could I have been jobbing?
could you have been jobbing?
could she have been jobbing?
could we have been jobbing?
could you have been jobbing?
could they have been jobbing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I job?
couldn't you job?
couldn't she job?
couldn't we job?
couldn't you job?
couldn't they job? 	couldn't I be jobbing?
couldn't you be jobbing?
couldn't she be jobbing?
couldn't we be jobbing?
couldn't you be jobbing?
couldn't they be jobbing? 	couldn't I have jobbed?
couldn't you have jobbed?
couldn't she have jobbed?
couldn't we have jobbed?
couldn't you have jobbed?
couldn't they have jobbed? 	couldn't I have been jobbing?
couldn't you have been jobbing?
couldn't she have been jobbing?
couldn't we have been jobbing?
couldn't you have been jobbing?
couldn't they have been jobbing?