English verb conjugation
SHOULD KNURL

Regular verb: knurl - knurled - knurled

Affirmation

Simple form	V-ing form
I should knurl you should knurl he should knurl we should knurl you should knurl they should knurl	I should be knurling you should be knurling he should be knurling we should be knurling you should be knurling they should be knurling
Perfect	V-ing perfect
I should have knurled you should have knurled he should have knurled we should have knurled you should have knurled they should have knurled	I should have been knurling you should have been knurling he should have been knurling we should have been knurling you should have been knurling they should have been knurling

Negation

Simple form	V-ing form
I should not knurl you should not knurl he should not knurl we should not knurl you should not knurl they should not knurl	I should not be knurling you should not be knurling he should not be knurling we should not be knurling you should not be knurling they should not be knurling
Perfect	V-ing perfect
I should not have knurled you should not have knurled he should not have knurled we should not have knurled you should not have knurled they should not have knurled	I should not have been knurling you should not have been knurling he should not have been knurling we should not have been knurling you should not have been knurling they should not have been knurling

Interrogative form

Simple form	V-ing form
should I knurl? should you knurl? should he knurl? should we knurl? should you knurl? should they knurl?	should I be knurling? should you be knurling? should he be knurling? should we be knurling? should you be knurling? should they be knurling?
Perfect	V-ing perfect
should I have knurled? should you have knurled? should he have knurled? should we have knurled? should you have knurled? should they have knurled?	should I have been knurling? should you have been knurling? should he have been knurling? should we have been knurling? should you have been knurling? should they have been knurling?

Interro-negative form

Simple form	V-ing form
should I not knurl? should you not knurl? should he not knurl? should we not knurl? should you not knurl? should they not knurl?	should I not be knurling? should you not be knurling? should he not be knurling? should we not be knurling? should you not be knurling? should they not be knurling?
Perfect	V-ing perfect
should I not have knurled? should you not have knurled? should he not have knurled? should we not have knurled? should you not have knurled? should they not have knurled?	should I not have been knurling? should you not have been knurling? should he not have been knurling? should we not have been knurling? should you not have been knurling? should they not have been knurling?