ought to interfuse
Regular verb: interfuse - interfused- interfused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to interfuse
you ought to interfuse
she ought to interfuse
we ought to interfuse
you ought to interfuse
they ought to interfuse 	I ought to be interfusing
you ought to be interfusing
she ought to be interfusing
we ought to be interfusing
you ought to be interfusing
they ought to be interfusing	I ought to have interfused
you ought to have interfused
she ought to have interfused
we ought to have interfused
you ought to have interfused
they ought to have interfused	I ought to have been interfusing
you ought to have been interfusing
she ought to have been interfusing
we ought to have been interfusing
you ought to have been interfusing
they ought to have been interfusing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to interfuse
you oughtn't to interfuse
she oughtn't to interfuse
we oughtn't to interfuse
you oughtn't to interfuse
they oughtn't to interfuse 	I oughtn't to be interfusing
you oughtn't to be interfusing
she oughtn't to be interfusing
we oughtn't to be interfusing
you oughtn't to be interfusing
they oughtn't to be interfusing	I oughtn't to have interfused
you oughtn't to have interfused
she oughtn't to have interfused
we oughtn't to have interfused
you oughtn't to have interfused
they oughtn't to have interfused	I oughtn't to have been interfusing
you oughtn't to have been interfusing
she oughtn't to have been interfusing
we oughtn't to have been interfusing
you oughtn't to have been interfusing
they oughtn't to have been interfusing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I interfuse?
ought to you interfuse?
ought to she interfuse?
ought to we interfuse?
ought to you interfuse?
ought to they interfuse? 	ought to I be interfusing?
ought to you be interfusing?
ought to she be interfusing?
ought to we be interfusing?
ought to you be interfusing?
ought to they be interfusing? 	ought to I have interfused?
ought to you have interfused?
ought to she have interfused?
ought to we have interfused?
ought to you have interfused?
ought to they have interfused? 	ought to I have been interfusing?
ought to you have been interfusing?
ought to she have been interfusing?
ought to we have been interfusing?
ought to you have been interfusing?
ought to they have been interfusing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to interfuse?
oughtn't you to interfuse?
oughtn't she to interfuse?
oughtn't we to interfuse?
oughtn't you to interfuse?
oughtn't they to interfuse? 	oughtn't I to be interfusing?
oughtn't you to be interfusing?
oughtn't she to be interfusing?
oughtn't we to be interfusing?
oughtn't you to be interfusing?
oughtn't they to be interfusing? 	oughtn't I to have interfused?
oughtn't you to have interfused?
oughtn't she to have interfused?
oughtn't we to have interfused?
oughtn't you to have interfused?
oughtn't they to have interfused? 	oughtn't I to have been interfusing?
oughtn't you to have been interfusing?
oughtn't she to have been interfusing?
oughtn't we to have been interfusing?
oughtn't you to have been interfusing?
oughtn't they to have been interfusing?