English verb conjugation
COULD TITIVATE

Regular verb: titivate - titivated - titivated

Affirmation

Simple form	V-ing form
I could titivate you could titivate she could titivate we could titivate you could titivate they could titivate	I could be titivating you could be titivating she could be titivating we could be titivating you could be titivating they could be titivating
Perfect	V-ing perfect
I could have titivated you could have titivated she could have titivated we could have titivated you could have titivated they could have titivated	I could have been titivating you could have been titivating she could have been titivating we could have been titivating you could have been titivating they could have been titivating

Negation

Simple form	V-ing form
I couldn't titivate you couldn't titivate she couldn't titivate we couldn't titivate you couldn't titivate they couldn't titivate	I couldn't be titivating you couldn't be titivating she couldn't be titivating we couldn't be titivating you couldn't be titivating they couldn't be titivating
Perfect	V-ing perfect
I couldn't have titivated you couldn't have titivated she couldn't have titivated we couldn't have titivated you couldn't have titivated they couldn't have titivated	I couldn't have been titivating you couldn't have been titivating she couldn't have been titivating we couldn't have been titivating you couldn't have been titivating they couldn't have been titivating

Interrogative form

Simple form	V-ing form
could I titivate? could you titivate? could she titivate? could we titivate? could you titivate? could they titivate?	could I be titivating? could you be titivating? could she be titivating? could we be titivating? could you be titivating? could they be titivating?
Perfect	V-ing perfect
could I have titivated? could you have titivated? could she have titivated? could we have titivated? could you have titivated? could they have titivated?	could I have been titivating? could you have been titivating? could she have been titivating? could we have been titivating? could you have been titivating? could they have been titivating?

Interro-negative form

Simple form	V-ing form
couldn't I titivate? couldn't you titivate? couldn't she titivate? couldn't we titivate? couldn't you titivate? couldn't they titivate?	couldn't I be titivating? couldn't you be titivating? couldn't she be titivating? couldn't we be titivating? couldn't you be titivating? couldn't they be titivating?
Perfect	V-ing perfect
couldn't I have titivated? couldn't you have titivated? couldn't she have titivated? couldn't we have titivated? couldn't you have titivated? couldn't they have titivated?	couldn't I have been titivating? couldn't you have been titivating? couldn't she have been titivating? couldn't we have been titivating? couldn't you have been titivating? couldn't they have been titivating?