I should photosynthesise you should photosynthesise he should photosynthesise we should photosynthesise you should photosynthesise they should photosynthesise
V-ing form
I should be photosynthesising you should be photosynthesising he should be photosynthesising we should be photosynthesising you should be photosynthesising they should be photosynthesising
Perfect
I should have photosynthesised you should have photosynthesised he should have photosynthesised we should have photosynthesised you should have photosynthesised they should have photosynthesised
V-ing perfect
I should have been photosynthesising you should have been photosynthesising he should have been photosynthesising we should have been photosynthesising you should have been photosynthesising they should have been photosynthesising
Negation
Simple form
I should not photosynthesise you should not photosynthesise he should not photosynthesise we should not photosynthesise you should not photosynthesise they should not photosynthesise
V-ing form
I should not be photosynthesising you should not be photosynthesising he should not be photosynthesising we should not be photosynthesising you should not be photosynthesising they should not be photosynthesising
Perfect
I should not have photosynthesised you should not have photosynthesised he should not have photosynthesised we should not have photosynthesised you should not have photosynthesised they should not have photosynthesised
V-ing perfect
I should not have been photosynthesising you should not have been photosynthesising he should not have been photosynthesising we should not have been photosynthesising you should not have been photosynthesising they should not have been photosynthesising
Interrogative form
Simple form
should I photosynthesise? should you photosynthesise? should he photosynthesise? should we photosynthesise? should you photosynthesise? should they photosynthesise?
V-ing form
should I be photosynthesising? should you be photosynthesising? should he be photosynthesising? should we be photosynthesising? should you be photosynthesising? should they be photosynthesising?
Perfect
should I have photosynthesised? should you have photosynthesised? should he have photosynthesised? should we have photosynthesised? should you have photosynthesised? should they have photosynthesised?
V-ing perfect
should I have been photosynthesising? should you have been photosynthesising? should he have been photosynthesising? should we have been photosynthesising? should you have been photosynthesising? should they have been photosynthesising?
Interro-negative form
Simple form
should I not photosynthesise? should you not photosynthesise? should he not photosynthesise? should we not photosynthesise? should you not photosynthesise? should they not photosynthesise?
V-ing form
should I not be photosynthesising? should you not be photosynthesising? should he not be photosynthesising? should we not be photosynthesising? should you not be photosynthesising? should they not be photosynthesising?
Perfect
should I not have photosynthesised? should you not have photosynthesised? should he not have photosynthesised? should we not have photosynthesised? should you not have photosynthesised? should they not have photosynthesised?
V-ing perfect
should I not have been photosynthesising? should you not have been photosynthesising? should he not have been photosynthesising? should we not have been photosynthesising? should you not have been photosynthesising? should they not have been photosynthesising?