should fine-tune
Regular verb: fine-tune - fine-tuned- fine-tuned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd fine-tune
you'd fine-tune
he'd fine-tune
we'd fine-tune
you'd fine-tune
they'd fine-tune 	I'd be fine-tuning
you'd be fine-tuning
he'd be fine-tuning
we'd be fine-tuning
you'd be fine-tuning
they'd be fine-tuning	I should've fine-tuned
you should've fine-tuned
he should've fine-tuned
we should've fine-tuned
you should've fine-tuned
they should've fine-tuned	I should've been fine-tuning
you should've been fine-tuning
he should've been fine-tuning
we should've been fine-tuning
you should've been fine-tuning
they should've been fine-tuning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't fine-tune
you shouldn't fine-tune
he shouldn't fine-tune
we shouldn't fine-tune
you shouldn't fine-tune
they shouldn't fine-tune 	I shouldn't be fine-tuning
you shouldn't be fine-tuning
he shouldn't be fine-tuning
we shouldn't be fine-tuning
you shouldn't be fine-tuning
they shouldn't be fine-tuning	I shouldn't have fine-tuned
you shouldn't have fine-tuned
he shouldn't have fine-tuned
we shouldn't have fine-tuned
you shouldn't have fine-tuned
they shouldn't have fine-tuned	I shouldn't have been fine-tuning
you shouldn't have been fine-tuning
he shouldn't have been fine-tuning
we shouldn't have been fine-tuning
you shouldn't have been fine-tuning
they shouldn't have been fine-tuning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I fine-tune?
should you fine-tune?
should he fine-tune?
should we fine-tune?
should you fine-tune?
should they fine-tune? 	should I be fine-tuning?
should you be fine-tuning?
should he be fine-tuning?
should we be fine-tuning?
should you be fine-tuning?
should they be fine-tuning? 	should I have fine-tuned?
should you have fine-tuned?
should he have fine-tuned?
should we have fine-tuned?
should you have fine-tuned?
should they have fine-tuned? 	should I have been fine-tuning?
should you have been fine-tuning?
should he have been fine-tuning?
should we have been fine-tuning?
should you have been fine-tuning?
should they have been fine-tuning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I fine-tune?
shouldn't you fine-tune?
shouldn't he fine-tune?
shouldn't we fine-tune?
shouldn't you fine-tune?
shouldn't they fine-tune? 	shouldn't I be fine-tuning?
shouldn't you be fine-tuning?
shouldn't he be fine-tuning?
shouldn't we be fine-tuning?
shouldn't you be fine-tuning?
shouldn't they be fine-tuning? 	shouldn't I have fine-tuned?
shouldn't you have fine-tuned?
shouldn't he have fine-tuned?
shouldn't we have fine-tuned?
shouldn't you have fine-tuned?
shouldn't they have fine-tuned? 	shouldn't I have been fine-tuning?
shouldn't you have been fine-tuning?
shouldn't he have been fine-tuning?
shouldn't we have been fine-tuning?
shouldn't you have been fine-tuning?
shouldn't they have been fine-tuning?