English verb conjugation
OUGHT TO PRECHECK

Regular verb: precheck - prechecked - prechecked

Affirmation

Simple form	V-ing form
I ought to precheck you ought to precheck he ought to precheck we ought to precheck you ought to precheck they ought to precheck	I ought to be prechecking you ought to be prechecking he ought to be prechecking we ought to be prechecking you ought to be prechecking they ought to be prechecking
Perfect	V-ing perfect
I ought to have prechecked you ought to have prechecked he ought to have prechecked we ought to have prechecked you ought to have prechecked they ought to have prechecked	I ought to have been prechecking you ought to have been prechecking he ought to have been prechecking we ought to have been prechecking you ought to have been prechecking they ought to have been prechecking

Negation

Simple form	V-ing form
I ought not to precheck you ought not to precheck he ought not to precheck we ought not to precheck you ought not to precheck they ought not to precheck	I ought not to prechecking you ought not to prechecking he ought not to prechecking we ought not to prechecking you ought not to prechecking they ought not to prechecking
Perfect	V-ing perfect
I ought not to have prechecked you ought not to have prechecked he ought not to have prechecked we ought not to have prechecked you ought not to have prechecked they ought not to have prechecked	I ought not to have been prechecking you ought not to have been prechecking he ought not to have been prechecking we ought not to have been prechecking you ought not to have been prechecking they ought not to have been prechecking

Interrogative form

Simple form	V-ing form
ought to I precheck? ought to you precheck? ought to he precheck? ought to we precheck? ought to you precheck? ought to they precheck?	ought to I be prechecking? ought to you be prechecking? ought to he be prechecking? ought to we be prechecking? ought to you be prechecking? ought to they be prechecking?
Perfect	V-ing perfect
ought to I have prechecked? ought to you have prechecked? ought to he have prechecked? ought to we have prechecked? ought to you have prechecked? ought to they have prechecked?	ought to I have been prechecking? ought to you have been prechecking? ought to he have been prechecking? ought to we have been prechecking? ought to you have been prechecking? ought to they have been prechecking?

Interro-negative form

Simple form	V-ing form
ought I not to precheck? ought you not to precheck? ought he not to precheck? ought we not to precheck? ought you not to precheck? ought they not to precheck?	ought I not to be prechecking? ought you not to be prechecking? ought he not to be prechecking? ought we not to be prechecking? ought you not to be prechecking? ought they not to be prechecking?
Perfect	V-ing perfect
ought I not to have prechecked? ought you not to have prechecked? ought he not to have prechecked? ought we not to have prechecked? ought you not to have prechecked? ought they not to have prechecked?	ought I not to have been prechecking? ought you not to have been prechecking? ought he not to have been prechecking? ought we not to have been prechecking? ought you not to have been prechecking? ought they not to have been prechecking?