When countingverbs, catenatives are counted only if there are two othermain verbs in the sentence. Examples :â  I wanna eat a sandwich.â  I am gonna eat a sandwich and watch a movie.The first sentence is a simple sentence because itcontains one main verb (eat) and a catenative (wanna).
The ability of seeds to germinate at high salt concentration in the soil is crucial importance for the survival and perpetuation of many plant species. Therefore, we examined effects of different concentrations of NaCl (200, 400, 600 and 800 mM) on germination of four species from fam.
  This has to do with the concentration of the detergent and the type of deterget used. If for example a detergent is used that contains phosphate, high concentrations of the phosphate detergent is will be toxic for the seedlings and thus have adverse effects on the germination of the seeds.