English verb conjugation
OUGHT TO CURDLE

Regular verb: curdle - curdled - curdled

Affirmation

Simple form	V-ing form
I ought to curdle you ought to curdle he ought to curdle we ought to curdle you ought to curdle they ought to curdle	I ought to be curdling you ought to be curdling he ought to be curdling we ought to be curdling you ought to be curdling they ought to be curdling
Perfect	V-ing perfect
I ought to have curdled you ought to have curdled he ought to have curdled we ought to have curdled you ought to have curdled they ought to have curdled	I ought to have been curdling you ought to have been curdling he ought to have been curdling we ought to have been curdling you ought to have been curdling they ought to have been curdling

Negation

Simple form	V-ing form
I ought not to curdle you ought not to curdle he ought not to curdle we ought not to curdle you ought not to curdle they ought not to curdle	I ought not to curdling you ought not to curdling he ought not to curdling we ought not to curdling you ought not to curdling they ought not to curdling
Perfect	V-ing perfect
I ought not to have curdled you ought not to have curdled he ought not to have curdled we ought not to have curdled you ought not to have curdled they ought not to have curdled	I ought not to have been curdling you ought not to have been curdling he ought not to have been curdling we ought not to have been curdling you ought not to have been curdling they ought not to have been curdling

Interrogative form

Simple form	V-ing form
ought to I curdle? ought to you curdle? ought to he curdle? ought to we curdle? ought to you curdle? ought to they curdle?	ought to I be curdling? ought to you be curdling? ought to he be curdling? ought to we be curdling? ought to you be curdling? ought to they be curdling?
Perfect	V-ing perfect
ought to I have curdled? ought to you have curdled? ought to he have curdled? ought to we have curdled? ought to you have curdled? ought to they have curdled?	ought to I have been curdling? ought to you have been curdling? ought to he have been curdling? ought to we have been curdling? ought to you have been curdling? ought to they have been curdling?

Interro-negative form

Simple form	V-ing form
ought I not to curdle? ought you not to curdle? ought he not to curdle? ought we not to curdle? ought you not to curdle? ought they not to curdle?	ought I not to be curdling? ought you not to be curdling? ought he not to be curdling? ought we not to be curdling? ought you not to be curdling? ought they not to be curdling?
Perfect	V-ing perfect
ought I not to have curdled? ought you not to have curdled? ought he not to have curdled? ought we not to have curdled? ought you not to have curdled? ought they not to have curdled?	ought I not to have been curdling? ought you not to have been curdling? ought he not to have been curdling? ought we not to have been curdling? ought you not to have been curdling? ought they not to have been curdling?