should inquire
Regular verb: inquire - inquired- inquired

Affirmation 	
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I'd inquire
you'd inquire
she'd inquire
we'd inquire
you'd inquire
they'd inquire 	I'd be inquiring
you'd be inquiring
she'd be inquiring
we'd be inquiring
you'd be inquiring
they'd be inquiring	I should've inquired
you should've inquired
she should've inquired
we should've inquired
you should've inquired
they should've inquired	I should've been inquiring
you should've been inquiring
she should've been inquiring
we should've been inquiring
you should've been inquiring
they should've been inquiring	

Negation 	
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I shouldn't inquire
you shouldn't inquire
she shouldn't inquire
we shouldn't inquire
you shouldn't inquire
they shouldn't inquire 	I shouldn't be inquiring
you shouldn't be inquiring
she shouldn't be inquiring
we shouldn't be inquiring
you shouldn't be inquiring
they shouldn't be inquiring	I shouldn't have inquired
you shouldn't have inquired
she shouldn't have inquired
we shouldn't have inquired
you shouldn't have inquired
they shouldn't have inquired	I shouldn't have been inquiring
you shouldn't have been inquiring
she shouldn't have been inquiring
we shouldn't have been inquiring
you shouldn't have been inquiring
they shouldn't have been inquiring	

Interrogative form 	
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should I inquire?
should you inquire?
should she inquire?
should we inquire?
should you inquire?
should they inquire? 	should I be inquiring?
should you be inquiring?
should she be inquiring?
should we be inquiring?
should you be inquiring?
should they be inquiring? 	should I have inquired?
should you have inquired?
should she have inquired?
should we have inquired?
should you have inquired?
should they have inquired? 	should I have been inquiring?
should you have been inquiring?
should she have been inquiring?
should we have been inquiring?
should you have been inquiring?
should they have been inquiring? 	

Interro-negative form 	
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shouldn't I inquire?
shouldn't you inquire?
shouldn't she inquire?
shouldn't we inquire?
shouldn't you inquire?
shouldn't they inquire? 	shouldn't I be inquiring?
shouldn't you be inquiring?
shouldn't she be inquiring?
shouldn't we be inquiring?
shouldn't you be inquiring?
shouldn't they be inquiring? 	shouldn't I have inquired?
shouldn't you have inquired?
shouldn't she have inquired?
shouldn't we have inquired?
shouldn't you have inquired?
shouldn't they have inquired? 	shouldn't I have been inquiring?
shouldn't you have been inquiring?
shouldn't she have been inquiring?
shouldn't we have been inquiring?
shouldn't you have been inquiring?
shouldn't they have been inquiring?