should enquire
Regular verb: enquire - enquired- enquired

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should enquire
you should enquire
he should enquire
we should enquire
you should enquire
they should enquire 	I should be enquiring
you should be enquiring
he should be enquiring
we should be enquiring
you should be enquiring
they should be enquiring	I should have enquired
you should have enquired
he should have enquired
we should have enquired
you should have enquired
they should have enquired	I should have been enquiring
you should have been enquiring
he should have been enquiring
we should have been enquiring
you should have been enquiring
they should have been enquiring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not enquire
you should not enquire
he should not enquire
we should not enquire
you should not enquire
they should not enquire 	I should not be enquiring
you should not be enquiring
he should not be enquiring
we should not be enquiring
you should not be enquiring
they should not be enquiring	I should not have enquired
you should not have enquired
he should not have enquired
we should not have enquired
you should not have enquired
they should not have enquired	I should not have been enquiring
you should not have been enquiring
he should not have been enquiring
we should not have been enquiring
you should not have been enquiring
they should not have been enquiring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I enquire?
should you enquire?
should he enquire?
should we enquire?
should you enquire?
should they enquire? 	should I be enquiring?
should you be enquiring?
should he be enquiring?
should we be enquiring?
should you be enquiring?
should they be enquiring? 	should I have enquired?
should you have enquired?
should he have enquired?
should we have enquired?
should you have enquired?
should they have enquired? 	should I have been enquiring?
should you have been enquiring?
should he have been enquiring?
should we have been enquiring?
should you have been enquiring?
should they have been enquiring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not enquire?
should you not enquire?
should he not enquire?
should we not enquire?
should you not enquire?
should they not enquire? 	should I not be enquiring?
should you not be enquiring?
should he not be enquiring?
should we not be enquiring?
should you not be enquiring?
should they not be enquiring? 	should I not have enquired?
should you not have enquired?
should he not have enquired?
should we not have enquired?
should you not have enquired?
should they not have enquired? 	should I not have been enquiring?
should you not have been enquiring?
should he not have been enquiring?
should we not have been enquiring?
should you not have been enquiring?
should they not have been enquiring?