English verb conjugation
OUGHT TO CLASH

Regular verb: clash - clashed - clashed

Affirmation

Simple form	V-ing form
I ought to clash you ought to clash he ought to clash we ought to clash you ought to clash they ought to clash	I ought to be clashing you ought to be clashing he ought to be clashing we ought to be clashing you ought to be clashing they ought to be clashing
Perfect	V-ing perfect
I ought to have clashed you ought to have clashed he ought to have clashed we ought to have clashed you ought to have clashed they ought to have clashed	I ought to have been clashing you ought to have been clashing he ought to have been clashing we ought to have been clashing you ought to have been clashing they ought to have been clashing

Negation

Simple form	V-ing form
I ought not to clash you ought not to clash he ought not to clash we ought not to clash you ought not to clash they ought not to clash	I ought not to clashing you ought not to clashing he ought not to clashing we ought not to clashing you ought not to clashing they ought not to clashing
Perfect	V-ing perfect
I ought not to have clashed you ought not to have clashed he ought not to have clashed we ought not to have clashed you ought not to have clashed they ought not to have clashed	I ought not to have been clashing you ought not to have been clashing he ought not to have been clashing we ought not to have been clashing you ought not to have been clashing they ought not to have been clashing

Interrogative form

Simple form	V-ing form
ought to I clash? ought to you clash? ought to he clash? ought to we clash? ought to you clash? ought to they clash?	ought to I be clashing? ought to you be clashing? ought to he be clashing? ought to we be clashing? ought to you be clashing? ought to they be clashing?
Perfect	V-ing perfect
ought to I have clashed? ought to you have clashed? ought to he have clashed? ought to we have clashed? ought to you have clashed? ought to they have clashed?	ought to I have been clashing? ought to you have been clashing? ought to he have been clashing? ought to we have been clashing? ought to you have been clashing? ought to they have been clashing?

Interro-negative form

Simple form	V-ing form
ought I not to clash? ought you not to clash? ought he not to clash? ought we not to clash? ought you not to clash? ought they not to clash?	ought I not to be clashing? ought you not to be clashing? ought he not to be clashing? ought we not to be clashing? ought you not to be clashing? ought they not to be clashing?
Perfect	V-ing perfect
ought I not to have clashed? ought you not to have clashed? ought he not to have clashed? ought we not to have clashed? ought you not to have clashed? ought they not to have clashed?	ought I not to have been clashing? ought you not to have been clashing? ought he not to have been clashing? ought we not to have been clashing? ought you not to have been clashing? ought they not to have been clashing?